Best Buy Precision Twist C21R10 High Speed Steel Jobber Drill Bit Set, Black Oxide Finish, Round Shank, Spiral Flute, 118 Degree Point Angle, 21 piece, 1/16" to 3/8" x 64ths Sale

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Precision Twist C21R10 High Speed Steel Jobber Drill Bit Set, Black Oxide Finish, Round Shank, Spiral Flute, 118 Degree Point Angle, 21 piece, 1/16" to 3/8" x 64ths Specification

• 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
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging