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Yukon Tool YT115CD 115-Piece Cobalt Drill Bit Set Yukon Tool MORE INFO

From the Manufacturer Cobalt Alloy coated and High Speed Tempered! Superior durability over M2 High speed and Titanium coated drill bits. Cobalt will retain a sharper edge and will outlast a standard highspeed drill bit by 15 times. 135 degree point design also prevents walking. Cobalt gives added heat resistance making them perfect for all drilling applications, especially cordless drills. 3/8-inch reduced shank to work in nearly any drill. Includes free laminated index guide. The perfect set containing all the drill sizes you will ever need. 60 wire gauge number size bits 160, 26 Letter size bits AZ, 29 Fractional Standard Size bits 1/16- to 1/2-inch in 64ths. 115 total bits in a rugged custom steel index case with builtin organizational folding storage.