Hand Tools

Apex Insert bits, etc: http://www.cooperindustries.com/
Armstrong tools: http://www.armstrongtools.com/
Channel Locks: http://www.channellock.com/
Cooper Tool Group (Crescent, Diamond, Lufkin Tapes,Nicholson, Plumb, H.K. Porter, Wiss): http://www.coopertools.com/
Klein Tools: http://www.kleintools.com/
Macklinburg-Duncan: http://www.mdteam.com/
L. S. Starrett Company makes precision tools for the hardware trades: http://www.starrett.com/
Stanley maker of quality hand tools : http://www.stanleyworks.com/
Union Tools maker of shovels, rakes, and other useful tools: http://www.uniontools.com/
Wilton Corporation offers products for welding, pipeline, metal fabrication, woodworking and maintenance: http://www.wiltontool.com/

Power Tools

Black and Decker: http://www.blackanddecker.com/
Chicago Pneumatic: http://www.chicagopneumatic.com/
Jet Tools: Jet Tools
Makita Tools: http://www.makita.com/
Milwaukee Electric Tool Corporation: http://www.mil-electric-tool.com/
Porter Cable: http://www.porter-cable.com/
Ridgid Tool: http://www.ridgid.com/

Power Transmission

Baldor Motors and Drives: http://www.baldor.com/
Bearings and PT Products from Browning: http://www.emerson-ept.com/
BCA / NTN AMERICA: http://www.ntnamerica.com/ Chicago Rawhide Bearings:
Conveyor Accessories Inc: http://www.conveyoraccessories.com/
Dayco Belts: http://www.dayco.com/
Fafnir Bearings: http://www.torrington.com/
Gates Belts and Hoses: http://www.gates.com/
General Bearings: http://www.generalbearing.com/
Link-Belt Construction Equipment: http://www.linkbelt.com/
SNR Bearings: http://www.snrbearings.com/

Safety Products

3 M Products: http://www.mmm.com/
American Allsafe:
Best Glove: http://www.bestglove.com/
Bone Safety Signs: http://www.bonesafety.com/
Cabot Safety: http://www.aearo.com/
Certified Safety Mfg: http://www.certifiedsafety.com/
Great Southern Gloves: http://www.greatsoutherncorp.com/
Howard Leight: http://www.howardleight.com/
Hy-Ko Signs: http://www.hy-ko.com/
Justrite: http://www.justritemfg.com/
Lab Safety: http://www.labsafety.com/
Lakeland Industries: http://www.lakeland.com/
Memphis Glove: http://www.memphisglove.com/
Moldex: http://www.moldex.com/