Cobalt Drill Bit Set 99pc for Stainless Steel Inox 5% M35 Metal HSS-Co 99 Drills
99pc Cobalt Drill Piece Set. Made from ultra-hard M35 high-speed steel with 5% cobalt content, this 99pc set of drill bits is engineered to drill through titanium alloy, steel, brick, wood, plastic and more with ease.