Countersink - Chatterless M2 HSS Six Flute 1/2"-82 degrees

Countersink High speed steel straight shank(1/4" shank) 2" overall length 1/2" head diameter 82 degree cutting angle (the angle of most flat head screws) 6 flute M2 High speed steel construction Used for enlarging and beveling already drilled holes.  6 Flute Countersinks, also called chatterless countersinks, are designed to provide more metal removal than countersinks with less flutes. They are also more effective on harder materials and provide a cleaner, more chatter free cut. Great for enlarging tang holes and countersinking holes in handle material for recessed flat head screws.