M35 Cobalt Drill Bit Sets

KnKut M35 cobalt drill bit sets put a full range of heat-resistant cobalt bits in one organized case — built to cut stainless steel, titanium, and work-hardening alloys that burn up ordinary high-speed steel. Every set is USA made with an HD hex shank that grips in a standard chuck and runs in an impact driver, in 13, 15, 21, and 29-piece configurations plus a 29-piece Drill Buddy set. Mechanics, body shops, fabricators, and custom car, Jeep, and off-road builders reach for them on the stainless and high-strength hardware that fills modern work. Need single sizes? Shop our individual M35 cobalt drill bits.