115 PCS HSS Cobalt Drill Bit Set 3/8"-16 UNC

3/8"-16 UNC

【Wide Application】Precision-ground teeth deliver faster

Twist Jobber Drill Bits Set

HIGHFIRE hex shank drill bits with tapered web design increases strength and reduces breakage

maintenance work

115 PCS HSS Cobalt Drill Bit Set 3/8"-16 UNC115 PCS HSS Cobalt Drill Bit Set, Twist Jobber Drill Bits Set, 135 Degree Split Point, Fractional 1 16" 1 2", Letter A Z, Wire #1 #60 with Metal Indexed Storage Case COBALT JOBBER DRILL BITS: 115 pcs high speed steel with 5% cobalt drill bit set can resist high heat abrasion while drilling. M35 cobalt HSS twist drill bits is more suitable for hardened working material. Particularly adapt to drilling stainless steel, cast iron, high temperature alloy,