Three flats on shank to prevent slippage in a 3-jaw chuck.
9/16″ diameter.
1/2″ reduced shank.
3-15/16″ flute length.
5-15/16″ overall length.
Alignment reamer. Made of high speed steel. Black and bronze oxide finish. Three flats on shank to prevent slippage in a 3-jaw chuck. 9/16″ diameter. 1