Cobalt-Steel Drill-Bit-Set 15-piece 1/16" 3/8"

Constructed of M-42, 8 percent cobalt high speed steel for super abrasive resistance in tough metals. 135 split point reduces feed pressure for easier penetration without work hardening. Durable rubber-sided case for added impact resistance. Sliding latch design provides added security. Sizes include: 1/16" (2), 5/64", 3/32" (2), 7/64", 1/8" (2), 9/64", 5/32", 3/16", 7/62", 1/4", 5/16", and 3/8".