Titanium nitride (Tin) coated bits last up to six times as long as uncoated bits. 115-piece set features 29 fractional bits from 1/16" to 1/2" in increments of 1/64" letter bits from A to Z and 60 number bits. Housed in rugged steel case.
Cool cutting titanium nitride makes these high speed steel bits tough enough to last up to six times as long as non-coated HSS bits. This indexed 115-piece drill set features 29 fractional bits ranging from 1/16" to 1/2", lettered bits from A to Z and 60 numbered bits. Housed in a rugged indexed steel case.