3 Piece Set of High Speed Steel Titanium Nitride Coated Step Drill Bits.Set Contents:High Speed Steel Step Drill BitsTitanium Coated Steel1/4" Locking Hex Shank6-Step Bit (inches):3/16", 1/4" , 5/16", 3/8", 7/16", 1/2"9-Step Bit (inches): 1/4", 5/16", 3/8"
3 Piece Set of High Speed Steel Titanium Nitride Coated Step Drill Bits.
Set Contents:
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