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1/2 IN TITANIUM IR DRILL BIT
KSEIBI 13 Steps 1/8-1/2 inch SAE Standard Industrial Grade Step Drill Bit Ready Impact 1/4 inch Shank, 575075 High Speed Steel Black Oxide M2 Metal Drill Bits - Yahoo Shopping
Dowell Impact Grade Socket Adapter Set Extension Bit With Holder 1/4-Inch, 3/8-Inch,