Irwin 63221 Drill Bit Set Cobalt Alloy Steel Jobber Fractional 21-Piece
$93.15
Irwin 63221 21-Piece Cobalt High Speed Steel Drill Bit Sets
Constructed of M-42 8 percent cobalt high speed steel for super abrasive resistance in tough metals Heavy duty spiral flute design produces faster chip ejection Shorter cutting lips reduce torque for drilling in high tensile strength materials. 135-degree split point reduces feed pressure for easier penetration without work hardening
21-piece set in metal index case includes drill bit sizes 1/16" through 3/8" in 1/64" increments
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