Fein 64298050000 Imperial Twist Drill Kit

The drill bits in these sets 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. High-speed steel drill bits provide some flexibility and absorb some shock and vibration. Drill Bit Sizes Included - 1/4 in; 5/16 in; 3/8 in; 7/16 in Smallest Drill Bit Size - 1/4 in Drill Bit Point Angle1 - 35 ° Includes - 1/4 in, 5/16 in, 3/8 in, 7/16 in Largest Drill Bit Size - 7/16 in Country of Origin - Taiwan