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.