These drill bits come in standard sizes expressed in fractional inches. - They have a black-oxide finish that retains lubricants to improve the bits' wear resistance and chip flow. - Black-oxide bits should only be used for drilling ferrous metals. - The bits' spiral flutes evacuate chips as the bits drill into a workpiece. - These bits have a straight shank that installs into a drill chuck or similar toolholder.
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Drill Bit
DRILL BIT
Drill Bit
DRILL BIT