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391 14 Tools & Equipment

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Tools & Equipment

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The Tools You NeedCGC does not manufacture or distribute tools or equipment; however,suitably designed tools are essential for high-quality workmanship.Using the right tools for specific jobs can improve efficiency and reducelabor costs. This Chapter contains an extensive sampling of toolsdesigned to meet the needs of acoustical, drywall, veneer plaster andplastering contractors. Some of the more commonly used hand toolscan be found at building material dealers, hardware stores and homecenters.

Framing and Acoustical CeilingInstallation ToolsLaser Alignment Tool An extremely precise

device that utilizes a visiblelaser beam for all constructionalignment jobs. Provides max-imum accuracy and speed forlaying out partitions and lev-eling suspended ceiling grids.

Power Fastener Driver Used to drive fasteners into concrete or steel forattachment of framing members. Powder-drivenmodel shown. Available in air-driven and powder-driven models.

End Cut Nippers Lather’s nippers for wire-tied attachments of metallath, ceiling grid and framingcomponents.

Metal Snips Hand tool used to makestraight cuts in steel framingcomponents and trims.Several sizes and styles available. Models are available to make left andright curved cuts.

Channel Stud Shear Cuts steel studs and runnersquickly, cleanly withoutdeforming. Has fixed guidesfor 41 mm (1-5/8�), 64 mm(2-1/2�) and 92 mm (3-5/8�)sizes. For use with a maxi-mum steel thickness of 20 ga.

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393Tools & Equipment

Circular Saw Cuts steel studs, runners and joists of various gaugeswith appropriate abrasivemetal-cutting blade. Hand-held and portable, it ensureseasy on-site cutting and trim-ming. Use a carbide-tippedblade for cutting DUROCK

Brand Cement Board.

Chop Saw The chop saw’s abrasivemetal cutting blade cuts allsteel framing members.Its steel base can be placedon a bench, saw horse orfloor for fast and efficientgang-cutting of members.Also available with mitre cutting capability

Band Saw A variety of models are available for use in cutting steel framing members.(Not shown)

Cut-Off Saw Gas powered for use whereelectricity is not available,this hand-held saw uses anabrasive blade and providesmore power than a circularsaw.

Stud Crimper For setting and splicing metal studs, roughing-in doorholders and window headers,setting electrical boxes and punching hanger-wire holesin ceiling grids.

Combination Chalk Line A plumb-bob shaped device Box and Plumb Bob that holds retractable chalk

line and chalk. Single toolplumbs floor-ceiling align-ments, snaps chalk line.

String Line

Magnetic Spirit Level

Water Level Hose type level, filled withwater. Especially useful forceiling grid installation.

Locking Pliers/Clamps Adjustable lock mechanism in the grip assures that the clamps hold securely.Excellent for holding steelframing and acoustical gridmembers in place duringscrew attachment.

Spring Clamps Faster and easier to use thanlocking clamps, and excellentfor light-duty applications.

Lineman’s Pliers Square-nosed pliers with flatjaws and integral wire cutter.Flat jaws are used for joiningwire such as suspension ceiling tie wire together bytwisting; cutter is used forquickly removing excess.

Magnetized to attach to steel framing, this level assuresmember level and plumb.

Typical length is 1200 mm (4�);available in 600 mm-2 m (2�-7�) lengths.

Strong nylon string that isstretched taught between twodistant points, such as midpointsfor ceiling grid wall angles,

so that additional componentscan be aligned to the same levelplane. (Not shown.)

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Acoustical Punch Pliers Plier type tool used forpunching holes in acousticalceiling grid tees for hangerwire attachment, or for wallangle corners or other jointsthat need to be secured bypop rivets.

Pop Rivet Tool Plier-type tool used to flareand secure pop rivets throughprepared holes. Especiallyuseful for securing wall anglecorners or tee joints in sus-pended acoustical ceilingapplications.

Serrated Knife Knife with serrated edgesmakes cutting insulation easy.

Board and Lath Application ToolsSteel Rule Retractable steel tape

measure is essential foraccurate measurements in preparation for cuttingand attaching board.

T-Square 1220 mm (4�) square is indis-pensable for making accuratecuts across the narrowdimension of board products.Also available in 1370 mm(54�) length for wider panels.

Utility Knife The standard knife for cuttingboard products. Has replace-able blade; extra blades storein handle.

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Hook-Bill Knife Useful for trimming gypsumboards and for odd-shapedcuts. (Also commonly knownas linoleum knife.) Use a carbide-tipped version of this knife for scoring DUROCK

Brand Cement Board.

Drywall Saw Short blade and coarse teeth (inset above) for cutting gypsum boards quickly and easily.

Keyhole-Type Saw for cutting small openingsUtility Saw and making odd-shaped cuts.

Sharp point and stiff blade can be punched through board for starting cut.

Circle Cutter Calibrated steel shaft allows accurate cuts up to400 mm (16�) diameter.

Electric Router Used with specially designedbits for cutting openings ingypsum panels for electricalboxes, heating ducts andgrilles, and other small passageways. For cutting cementboard or fiber-reinforced gypsum panels, other specialty bits are used.

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Tack Claw A screw driver with claw attached.Gives user the opportunity to correct improper fastener attachment or remove fastener.

Rasp Quickly and efficientlysmooths rough-cut edges of gypsum boards.Manufactured model at leftfeatures replaceable bladeand clean-cut slot to preventclogging. Job-made model atright consists of metal lathstapled to a 38 x 89 mm (2� x 4�) wood block.

Lather’s Hatchet The standard nailing and cutting tool for gypsum lath.

Drywall Hammer

Kick Lifter Device is designed to movethe panel forward as it lifts.Can be used for panelsapplied either perpendicularor parallel. Two types areshown.

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Has waffle-patterned convexface designed to compress gyp-sum panel face and leave desireddimple. Blade end is not for cut-

ting but for wedging and pryingpanel. Not for veneer plasterbases, which require a tool witha flatter head.

Panel Lift Cradle-type lifter allows one-person application of drywallto sidewalls and sloped ceil-ings as well as level ceilings.Tripod base with rollers foreasy movement.

Electric Screw Gun Electric-power screw gunsdrive drywall screws in gypsum board attachment.Special chuck and tip controlscrew depth to assure thatface paper is not broken. Alsoused for steel-stud framing and acoustical ceilings.

Cordless Screw Gun Operates with power frombattery pack which can bereadily recharged. Drill bodywith special chuck and tip.

Pistol-Type Stapler For attachment of insulationblankets to wood studs andto the inner face of gypsumboards in steel-framedassemblies. Also for attach-ment of corner beads,Striplath, Cornerite and fiber-glass mesh tape.

Electric or Pneumatic Used for all staple attachmentStapler applications. Electric or

pneumatic power assuresgreater staple leg penetration.

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Caulking EquipmentCartridge-Type Caulking Gun

Bulk-Type Caulking Gun

Loader Pump Pump clamps on 18.9 L (4-gal.) container to mechanicallyload bulk-type adhesive handguns. Eliminates waste of handand paddle loading.

Drum Extruder

Pail Extruder For high-volume extrusion of adhesives from pails. Airpower depends on viscosity(low, medium or high) of thematerial. Offered in portableor mobile units with pump,air regulators and gauge,pail ram, adapter and hose.

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Hand-operated apparatus uses850 ml (29-oz.) cartridges. Beadsize determined by cut of cartridge

nozzle. Aids uniform application ofadhesive. Smaller version uses295 ml (10-oz.) cartridges.

For high-volume applications.Cylinder is reloaded from bulkcontainer of adhesive. Triggermechanism withstands rough

usage and offers minimumresistance to large bulk load of adhesive. Gun has 1 L (1-qt.)capacity.

Pumping machine designed for high-volume output of viscousmaterial. Provides greater efficiency in the transfer, flowand spray of adhesives used to supplement or replace nail orscrew attachment of panels andsheet material, especially flooring, partitions and ceilings.Large pumping equipment permits bulk material purchases,

and contributes to job economy and waste reduction.

Most machine dispensing systems are available with aselection of pumps, flow valves,nozzles and accessories.Equipment manufacturers offera wide choice of components to provide the exact system for the job.

Mixing EquipmentHand Mixer For hand-mixing joint com-

pounds. Available in severalstyles, all looking much likepotato mashers. Model withrounded edge is especiallyeffective for scraping materialfrom sides of mixing bucket.

Heavy-Duty Drill While hand mixing of jointcompounds and textures isadequate, most applicatorsprefer electric mixers. Powermixing saves considerabletime, particularly on largejobs where mixing in a centrallocation is most convenient.Use a 12.7 mm (1/2�) heavy-duty electric drill operating at aspeed of 450-650 rpm. forjoint compounds, 300-600 rpmfor textures. Drills that operateat high speeds will whip airbubbles into the mix, renderingit unfit for finish coat purposes.

Use a 12.7 mm (1/2�) electricdrill with a no-load rating of900 to 1,000 rpm for mixingveneer plasters.

Joint Compound and Mixing paddles are available Texture Mixing Paddle in various styles, such as

the typical example shown.Paddles designed for jointcompounds and textures,however, should not be usedfor mixing veneer plaster finishes. The latter require aspecial cage-type paddle (see below).

Veneer Plaster Mixer The recommended mixer for CGC veneer plaster finishes is a cage-type paddle. Thispaddle provides high shearaction, necessary for properdispersion of plaster ingredi-ents in mixing water, and to develop high plasticity in

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the mix. Operated at properspeed, the paddle mixes thor-oughly, producing a virtuallyair-free plaster.

Plaster and Stucco Standard paddle-type mixer Mixer for stucco and conventional

plasters (not suitable forveneer plaster finishes).Available with capacities from140 to 200 L (5 to 7 cu. ft.) ineither electric or gasoline-powered models.

Lime Mixer A vertical drum mixer that con-sists of an electric motor(which drives shaft-mountedpaddles) mounted atop anopen-end drum. Models areavailable for mixing double-hydrated lime. Lime mixers aretypically made in 60 L and115 L sizes to accommodateone- and three-bag mixingassignments.

Finishing ToolsMud Pan A pan, shaped like a bread

pan, used as a joint com-pound carrier for the handfinisher. Edge of the pan isused for blade-cleaning.Available in a wide range ofsizes and material composi-tion, including stainless steel(preferred), plastic withremovable knife-cleaningblade, galvanized steel andtinplate.

Hawk Suitable for carrying anycementitious material by a handapplicator—joint compound,plaster, veneer finishes andstucco. Available in sizes from200 x 200 mm (8� x 8�) to 350 x 350 mm (14� x 14�) andin aluminum and magnesium.

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Banjo A box-type applicator thatpasses paper tape through a compartment filled withjoint compound so that bothmaterials are simultaneouslyapplied to joints.

Tape Holder Holds tape rolls up to 152 m(500�), and attaches to belt.

Taping Knives

Convertible Hopper Hopper holds and dispensesjoint compound evenly ontopaper-faced metal cornerbead. Will accommodate both90° and bullnose beadconfigurations.

Outside Roller Tool Tool used to press paper faced metal corner beads into place for precise trim alignment.

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100 mm (4�), 125 mm (5�) and150 mm (6�) knives are designedfor taping, fastener spotting, angletaping and finishing; a 200 mm(8�) or wider knife for finishcoating. The two narrower knives

are available with either plain han-dle or with hammerhead handle.Other drywall finishing knives areavailable with blade widths from25 mm (1�) up to 600 mm (24�).Long-handle models also available.

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Hand Sander Sandpaper is attached with endclamps to the 83 x 235 mm (3-1/4� x 9-1/4�) base plate.Models include those withwood or aluminum handles.

Pole Sander Long handle enables workingareas with longer strokes.

Vacuum Power Sander For fast and easy sanding oflarge areas. Vacuum dramati-cally reduces the amount ofairborne particles.

Angle Trowel For interior corner finishing of veneer plaster and drywalljobs. Similar tool with narrow-er blades available for con-ventional plaster. May also beused to evenly apply jointcompound.

Browning Rod Also known as a straight edge.Available in various lengths from 1220 to 2440 mm (4� to 8�), browning rods or straight edges are stiff, rectangular rods used for leveling first or base coats of plaster, typically across grounds.

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Feather Edge Another broad tool, similar to a straight edge except precision tapered to enablefeathering of plaster, generallyfrom corners, intersections or terminations, out onto theplaster plane and into thefield of already-applied plaster.

Slicker A tool with a beveled edgeoften used in place of adarby, to level and smoothplaster coats.

Darby For leveling, smoothing orfloating plaster brown coat,where an especially true andeven surface is desired. Madeof wood, metal-edged woodor all metal. Notched darby(pictured) is for scratchingbasecoats.

Float A device for leveling andstraightening the finish coator to correct surface irregu-larities. They are also used toproduce a sand-finish effecton plaster surfaces. Floatstypically are faced with hardrubber (shown), but may alsobe made of sponge rubber,cork, felt or carpet.

Angle Float Angle floats are used forinside corner work with conventional plasters. Can be used for either brown or finish coat.

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Blister Brush Felt pad used to keep theplaster finish wet while finishtroweling. This brush can also be used for wet-sandingjoint compound.

Trowels Available in several styles and in lengths from 250 to400 mm (10� to 16�). Trowelsare the standard tools forveneer plaster and conven-tional plaster work. Also usedby drywall finishers.

Margin Trowel A narrow trowel used to touch-up small areas,and for cleaning tools andequipment.

Pointer Trowel Pointed trowel enabling finishing of sharp angles.

Scarifier A wire-barbed tool for rakingthe wet surface of the scratchcoat, so that the brown coatcan key and bond correctly.

Scrub Brush Needed for cleanup. Residueon tools or containers canaffect performance of futurematerial batches.

Mechanical Taping ToolsThis line of specialized equipment is designed tospeed and facilitate high-volume taping and joint finishing operations.

Hand Pump Fills mechanical tools from 18.9 L pail.

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Tube-style device applies ametered amount of compoundonto the tape, places the tapeon the wall and cuts the tape

to length. Works for flat joints or corners. The original taper issold under the BAZOOKA® tradename.

Attaches to pole to wipe downand feather taping compoundon both sides of a corner in onepass. This head is also used as an attachment with CornerFinishing Box (see below) for application of topping.

Application box used to applyjoint compound to corners. It isused with an appropriateattachment, such as the Corner

Applicator Head (above) orPaper-Faced Bead ApplicatorHead (below).

Automatic Taper

Corner Roller Used to embed tape in corner and force excess compound from under tape prior to using the corner finisher box.

Corner Applicator Head

Corner Finishing Box

Paper-Faced Bead Attaches to Corner Finishing Applicator Head Box for application of taping

compound to corners prior to application of Paper-Faced Metal Bead.

Flat Finisher Box Application box places a definedlayer of compound 180 - 300 mm (7�-12�) wide on flat surfaces.Various handle lengths available to reach different height ceilings.

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Hand Texture EquipmentStucco Brush For creating a variety

of textures from stipple to swirl.

Texture Brush Available in many sizes and styles, tandem-mountedbrushes cover large area tospeed texturing job. The texture brush may be attachedto a pole for greater reach.

Wipedown Blade Tool has hardened steel blade and long handle tospeed cleaning of walls andfloors after application of jointcompound or texture materials.Straight wipedown blade isalso used to knock downsplatters to produce splatter-knockdown surface texture.

Roller

Roller Pan For use with roller. Somemodels can hold up to 11 kg(25-lb.) supply of mixed texture.

Glitter Gun For spraying glitter on wettexture ceilings. Hand-crankmodel shown is most economical but is not as efficient as air-powered type (not shown).

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Standard paint roller is adaptedto particular type of finishrequired. Roller sleeves available

include short-nap, long-nap andcarpet type in standard 230 mm(9�) and 460 mm (18�) widths.

Spray Texture EquipmentHopper Gun This machine, with a spray

gun and material hoppermounted together to form anintegral unit, handles mosttypes of drywall texture andfine-aggregate finish plastermaterials. Material is gravity-fed through a hand-held hopper. Compressed air isintroduced at the spray-nozzle orifice where texturematerial is atomized andapplied to substrate.

Universal Spray Machines

Rotor-Stator (Moyno) Pump

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This pump uses a screw mech-anism to pump material forwardthrough a cylinder. The auger-type rotor is powered by anelectrical or gas motor androtates in place within a station-ary metal sleeve that is linedwith a pliable material such asrubber or neoprene (the stator)to assure rotor-to-stator contactand stop back flow. The auger(rotor) moves material from thehopper into the cylinder (stator)

and drives it through the hose.

Rotor-stator pumps have a rela-tively high wear incidence with abrasive aggregates such assand or perlite. However, theyare particularly suited for pump-ing textures with polystyreneaggregates since these aggre-gates introduce “slip” into themix and reduce pumping resis-tance. In addition, the smooth,constant delivery action makes

When machine speed, air pres-sure and/or nozzle are adaptedto material used, equipment inthis group can handle drywalltextures, veneer plaster finishesand conventional plasters, stuccoand fireproofing materials.

Several factors must be considered in the selection ofnew equipment of this type,including: the type of material to be sprayed, type of finishdesired, output volume required,the distance (horizontally andvertically) that the material is tobe pumped, and portability ofthe machine through the hallsand doorways in a building.

The following information isgeneral in nature, offered to aidin the selection of new spray

equipment. Equipment is discussed in terms of the com-monly used types of pumpingdevices. Prospective equipmentbuyers should discuss their indi-vidual needs with manufacturersand users of the equipment.

Four pump types are available:Rotor-stator (Moyno), Peristaltic(squeeze-type), Piston (single andmulti-piston), and Diaphragm.While the delivery of material issufficient with each of thesepump types, the mechanical differences may result in opera-tional preferences of one typeover the rest. Each operatormust determine which will workbest for his or her application.Depending on the size, much of this equipment can be traileror truck mounted.

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Peristaltic Pump The action of this type ofpump is like that of a wheelrunning lengthwise over ahose, squeezing material inthe hose forward (the pumpis sometimes called a“squeeze-type” pump).Multiple rollers pass over thepumping line and ensuresmooth, constant materialdelivery. Offers the samebenefits as the rotor-statorpump. Designed for longwear. Excellent for relativelylow volume installations.The peristaltic pump set-upshown includes a hopper tohold material and is mountedon wheels for easy movementon the jobsite.

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inlet

outlet

rotation

rotation

steel shield

power

Moyno rotor-stator

stator rotor

hopper

to hose

Moyno roto-stator

Peristaltic (squeeze-type) pump

rotor-stator pumps a goodchoice for very fine textures.The trailer-mounted rig shown

is equipped with two separateself-contained mixing tanks andtwo rotor-stator pumps.

Piston Pumps

Single-Piston

Multi-Piston

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hoppermain cylinder surge cylinder

ramhoseintake

valvebulkheadvalve

power

power

pistonvalve

Single-piston pump

Piston pumps operate on muchthe same principal as pistons inan automobile engine, drawingmaterial into a cylinder throughone port and out through another.In the case of a piston pump,the material is drawn from the hopper into a cylindrical

chamber through a check valve as the piston is withdrawn.As the piston moves forwardagain, a check valve closes andthe piston’s ram action forcesthe material through the othercheck valve into the hose.

Pumps having two or more pis-tons share a common feature.All are designed to reducesurge to the lowest possiblelevel. One piston is dischargingmaterial into a manifold (whichin turns connects to the materialhose), while another cylinder isrecovering and drawing material

from the hopper in preparationfor a pump stroke.

In comparative terms, multi-piston pumps deliver the highestvolume of material of all pumptypes. Like single-pistonmachines, these pumps can bemetered down for a moderatelyfine texture.

In single-piston pumps, thematerial is drawn from the hopper into a large main cylinderand then into a smaller surgecylinder. The two-stage processassures continuous materialflow and equalizes pressureswithin the chambers to keeppulsations at an acceptablelevel. Actual material flow intothe hose is dictated by theaction in the surge cylinder.The piston ram only displacesabout half of the material in thecylinder and into the hose. Asthat action takes place at one

end of the piston, a check valveopens at the other end, drawingmore material into the maincylinder to renew the process.

Although single-piston pumpsdo deliver materials with someamount of surge, many opera-tors who specialize in perlitetexture work prefer thembecause of their low-wear, low-maintenance performance.These are high-volume pumpsthat can be metered for moderately fine textures.

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Diaphragm Pump

Hoses, Guns, NozzlesHoses Used to carry material from pump to nozzle. They vary in type and

generally have a diameter of 19 to 25 mm (3/4� to 1�).

Pole Guns Used with any universal spray machines as well as largest of drywalltexture machines described earlier in this section. Their length allowsany operator to spray moderately high ceilings without scaffolding orstilts. Model shown has electric start-stop control. Also available withair start-stop control.

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hopper

hoseintakevalve discharge

valve

power power power powerfirst piston discharging second piston discharging

Double-piston pump

A diaphragm pump’s operationis similar to a piston pump inthat it draws material into achamber with one action anddischarges it with another. Thedifference is that the diaphragmitself enables the chamber sizeto expand and contract. As thediaphragm moves in one direc-tion, material is drawn from the hopper into the chamberthrough a check valve. Whenthe diaphragm moves in theother direction, that check valvecloses and another opens,allowing material to move oninto the hose.

The special advantage of adiaphragm pump is that thediaphragm separates themechanical action of the pump

from the material flow, makingcleanup and maintenance easier.The set-up shown here has amaterial hopper placed abovethe pump, and the wheeled cartalso has a self-containedcompressor.

Texture Guns Professional-type equipmentfor specific texture applica-tions is manufactured byBinks, Graco and others. Eachgun is designed for specificproduct applications, forinstance the Binks Model 7E2Type Texturing Gun is usedfor high volume or heavy tex-ture designs, while the BinksModel 7D Type is for lightertextures. Follow the manufac-turer’s guidelines for selectionto meet particular applications.

Nozzles

Spray Shield Wide aluminum or plasticshield protects abutting wallor ceiling against oversprayduring spraying operation.Various widths available.

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air fromcompressor

air fromswitch

smallorifice pattern

largeorifice pattern air jet

air jet

Nozzle operation

Provide for a variety of spraytextures, and vary in orificeopenings from 6 to 16 mm

(1/4� to 5/8�). Those used forconventional texturing are neverlarger than 12 mm (1/2�).

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Miscellaneous Equipment Joint Compound and Adhesive Spreaders

Gypsum Board Dolly For efficient transport of gypsum boards around thefloors of a building. The load,centered over large sidewheels, is easily steered andmoved by one worker.

Folding Trestle Horse Top surface provides worksurface or stand-on workplatform. Legs adjust inincrements.

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Made either commercially or bythe applicator, these are used forapplying joint compound in lami-nated gypsum panel assemblies.

A notched trowel is commerciallyavailable in either metal or disposable plastic. Dependingon the notch configuration,these are often sufficient for job applications.

The spreader shown (below left)is easily made on the job.Stainless or galvanized sheetsteel make the best spreaders.Other materials are notsatisfactory because compound

tends to accumulate and dry inthe notches. A good spreaderblade has about the same stiff-ness as a plasterer’s trowel.

Notches should be an inverted“V” shape, 12 mm (1/2�) deep, 10 mm (3/8�) wide at thebase and spaced 38 to 50 mm(1-1/2� to 2�) o.c. A piece ofwood dowel or window stopattached near top edge of bladeprovides a grip.

The tool shown (below right) is alaminating spreader that appliesproperly sized beads of adhesiveat correct spacings.

Scaffold Portable and easy to set up.Wheels lock for safety andsecurity. Wide variety of sizesand types of scaffold areavailable to meet jobrequirements.

Stilts Convenient way to reach high areas on drywall, veneerplaster and plaster jobs. Givesapplicator full mobility plusheight needed for ceilingwork. Stilts have articulatedjoints to flex with ankle move-ment. Available in fixed-heightand adjustable-height types(adjustable, articulated modelshown).

Floor Scrapers Scrapers have hardened steel blades and long handlesto speed cleaning of floorsafter application of jointcompound, plaster or texturematerials. Blades are oftenreplaceable.

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ManufacturersThe following tool manufacturers provided illustrations or informationfor the creation of this chapter.

Ames Taping Tools and Systems, Duluth, GA

ITW (Binks) Industrial Finishing, Glendale Heights, IL

Bjorklund Manufacturing, Kirkland, WA

Dewalt Industrial Tool Company, Hampstead, MD

Empire Level Manufacturing Corporation, Waukesha, WI

Stanley Proto Industrial tools, Covington, GA

Graco Inc., Minneapolis, MN

Hilti, Inc., Tulsa, OK

Hyde Manufacturing Company, Southbridge, MA

Malco Products, Inc., Annandale, MN

Marshalltown Trowel Company, Marshalltown, IA

Milwaukee Electric Tool Company, Brookfield, WI

Pla-Cor Inc., Santee, CA

Porter-Cable Corporation, Jackson, TN

Quikspray, Inc., Port Clinton, OH

ITW Ramset/Red Head. Wood Dale, IL

Roto-Zip Corporation, Cross Plains, WI

S-B (Skil-Bosch) Power Tools, Chicago, IL

Spectra-Precision Inc., Dayton, OH

Spray Force Manufacturing, Fresno, CA

Wallboard Tool Company, Long Beach, CA

Wind-Lock Corp., Leesport, PA

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