Hyjoy M35 5% Cobalt Drill Bits Set 29PCS (1/16"-1/2"), Straight Shank Jobber Drill Bits, Metal HSS Drill Bits for Steel Hard Metal and Cast Iron

【5% COBALT DRILL BITS SET】Fabricated from M35 Cobalt Steel with Molybdenum and Cobalt added to create hardened alloy, can achieve to 67 hardness, cuts more rapidly, endures longer, and outlasts standard HSS drill bits by 12 times. 【29PCS SAE DRILL BITS SET】This contains sizes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, /64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8, /64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64, and 1/2 inch. Included is metal indexed storage case for organization. 【DESIGN AND 】 135° SPLIT Point, Surface and Round Straight Shank. Prevents drifting and accelerates chip and particle removal. Fully ground for smooth chip . 【VERSATILE AND WIDELY APPLICABLE】M35 Cobalt -Speed Steel is more suitable for hardening materials. for steel, steel, and cast iron as as wood, aluminum, and other metals. Not recommended for tile or ceramic materials. Pay attention to speed, pressure, and control during . 【SERVICE】If you encounter any issues with our metric drill bit set or are unhappy with the product, free to get in touch.