IRWIN 10232CB Unibit 1/16 Inch 6 Steps Cobalt Step Drill Bit

Drill bit is engineered with M-35-grade cobalt steel for maximum life when drilling in tough steel SpeedPoint tip for fast starts Drill bits feature a radial concave flute IRWIN drill bits have laser-marked sizes for simple identification Drills 6 hole sizes from 3/16" to 1/2" increments in 1/16" steps, Weight: 0.81 pounds, Manufacturer: IRWIN