Drill Bit Set - 29 Pieces (3/8 Inch Reduced Shank)

Ultra Bor Super Premium (3 Flats on Shank-3/16 in. & larger)Performance Features:- M7 Industrial Steel withstands high temperatures, maintains sharpness- 135 Split Point for fast penetration and accurate starting without center punch- Precision ground point flutes, body, clearance and drill diameter for the ultimate in accuracy and performance- Black and bronze oxide surface treatments reduce friction- Especially designed for hand held drills- 3-flat shank design eliminates slippage and provides a positive grip- Ideal for drilling in high carbon steel, stainless steel and other hard metal drilling applications