Three flats on shank to prevent slippage in a 3-jaw chuck.
5/8″ diameter.
1/2″ reduced shank.
4-1/2″ flute length.
6-9/16″ 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. 5/8″ diameter. 1/