Drill America 1/2"-100 High Speed Steel 6 Flute Chatterless Countersink, Dew Series

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance 6 flute chatterless countersink Round shanks allow use with a wide variety of toolholding systems Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called "zero flute" Designed to provide more metal removal then the 1,2,3, and 4 flute countersink