WAmerican National Carbide
WC-Thru Ruler
WClauss Cutlery Company
WCornwell Tools
WDAP Products
WDawn Equipment Company
WDesoutter Tools
WDisston Saw Works
WEmerson Electric
WGardner Bender
WGoodell-Pratt
WH. Barber and Sons
WH. D. Smith & Co.
WIdeal Industries
WIllinois Tool Works
WIMCO Carbide Tool
WIrwin Industrial Tools
WKeuffel and Esser
WKlein Tools
WLisle Corporation
WLowell Corporation
WMac Tools
WMarshalltown Company
WMillers Falls Company
WMilwaukee Electric Tool
WNew Britain Machine Company
WOTC Tool Company
WPark Tool
WPlumb (tools)
WProto (tools)
WRLF Brands
WSK Hand Tools
WSnap-on
WStanley Hand Tools
WWalker-Turner