COMOWARE Cobalt Drill Bit Set 115Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16" 1/2"

M35 Cobalt HSS Drill Bit Set - Made of high-speed steel with 5% cobalt for superior wear, heat & abrasion resistance. These cobalt drill bits for hardened steel deliver longer lifespan in stainless steel, cast iron & hard alloys versus standard HSS. Set Includes - The set includes 115Pcs (1/16" to 1/2" in 1/64" increments) Cobalt Drill Bits, This cobalt drill bit also includes the drill bit holder with size index for easy storage and organizing. 135° Split Point HSS Drill Bits - This drill bits set feature self-centering 135° quick-cut tips for effortless penetration with minimal pressure. The twisted shank design efficiently clears metal shavings, making them ideal for materials. Professional & Widely Use - This cobalt drill bit excels in drilling stainless steel, copper, cast iron, aluminum alloy, plastic and wood. Engineered for precision, these drill bits deliver unmatched durability across metalworking applications. 115-Piece Twist Drill Bit Set - Complete selection of 29 fractional sizes (1/16" to 1/2"), 26 letter sizes (A-Z), and 60 numbered bits (#1-#60). These drill bits for steel deliver full-range versatility in metalworking projects.