The Dude's Cobalt Drill Bits

The Dude’s M42 Cobalt Drill Bits stand the test of time. Constructed of a patented 8% cobalt and high-molybdenum alloy, The Dude’s Cobalt Drills cut the hardest stainless steel, Inconel, and AR400. The Dude’s cobalt drill bits are constructed with a wider web design which increases the drill bit strength, and allows for faster chip removal resulting in a “cooler” bit. The Dude’s Cobalt Drill bits feature a 135 degree split point which prevents “drill walking.” Shanks on sizes 3/16” and greater have 3, machine-ground flats, which prevent slippage in drill chucks. The Dude’s Cobalt bits are available in a wide assortment of jobber sets: Our 13 piece set runs from 1/16” thru 1/4” by 64ths, our 15 piece set runs from 1/6” thru 1/2” by 32nds, and our most popular 29 piece set runs from 1/16” thru 1/2” by 64ths; we also have added in a 21 piece set that runs from 1/16” thru 1/4” by the 64ths and 9/32” thru 1/2” by the 32nds. The Dude’s M42 Cobalt bits are also available in number sets from #1 thru #60, #61 thru #80, and letter sets from “A” thru “Z” as well has our 115 piece master mechanic’s set that includes fractional sizes from 1/16” thru 1/4” by 64ths, number sizes from #1 thru #60, and letter sizes from “A” thru “Z”. The Dude also offers the same sets in Machine Screw “Stubby” sizes. The Dude’s most recent addition includes metric sizes from .5mm thru 35mm, as well as Silver & Deming sizes from 9/16” up to 1-1/2” by 64ths.