Long shank sunken-milled for bolt with hex hole

A long type cutter used for sinking machining of HSS for spot facing.
[Features]
· Since there is a guide that matches the standard of the hex socket head bolt on the head component, chattering is minimal.
· As it is a long type, it supports work in deep places.
[Applications]
· Used for machining sunk holes for hexagon socket head bolts.