Cobalt alloy-coated bits drill through the hardest materials like stainless steel while cutting faster and drilling cleaner. Cobalt coating lasts longer than HSS and titanium-coated bits. 1/2in. shank. Includes case. Size 17/32in., 9/16in., 19/32in., 5/8in., 21/32in., 11/16in., 23/32in., 3/4in., 13/16in., 7/8in., 15/16 in. and 1in., Case Included Yes, Includes qty. 12, Finish Type Cobalt alloy-coated.
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