Home / Irwin 10231CB Unibit Step Drill Bit #1: 1/8" to 1/2" Cobalt Alloy Steel

Irwin 10231CB Unibit Step Drill Bit #1: 1/8" to 1/2" Cobalt Alloy Steel

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    Irwin 10231CB Description

    This IRWIN Unibit #1 Cobalt Alloy Steel Step Drill Bit is engineered with M-35-grade Cobalt Alloy Steel steel for maximum life when drilling in tough steel. Laser-marked sizes enable easy reading. The radial concave flute design helps ensure an effective use of drilling power.

    Irwin 10231CB Includes

    • (1) 1/8" to 1/2" Step Drill Bit

    Irwin 10231CB Features

    • Drill bit is engineered with M-35-grade Cobalt Alloy Steel for maximum life when drilling in tough steel
    • Drill bits feature a radial concave flute
    • IRWIN drill bits have laser-marked sizes for simple identification
    • Drills 13 hole sizes from 1/8 inch to 1/2 inch in 1/32-inch increments
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