.5625 inch High Speed Split Point Drill Bit, .375 inch Shank, Helix Is 31 and degree. Which Minimizes The Over Aggressiveness Of A True Parabolic Flute, 135 and degree. Split Point For Quick Start and No Walk Applications, Parabolic Flute Design Improves Chip Ejection In Metal and Wood Drilling Applications, Back Oxide Coating For Greater Resistance To Wear, Industrial Grade Steel, For Drilling In Metal, Wood and Plastic.
