Cobalt Jobber Twist Drill Bit Sets For Drilling Stainless Steels & Hard Metals

1x 5 Piece Set Cobalt Jobber Twist Drill Bits". 1x 10 Piece Set Cobalt Jobber Twist Drill Bits. 1x 19 Piece Set Cobalt Jobber Twist Drill Bits. 1 x 25 Piece Set Cobalt Jobber Twist Drill Bits. M35 alloyed HSS steel with 5% Cobalt content.

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