Description
High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
Round shanks allow use with a wide variety of toolholding systems
Reverse-flute drill bits run in the opposite (clockwise) direction from regular drill bits when making holes
13 piece drill bit set comes in a metal case
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