Screw finishing tool

Hand tool for filing and finishing the ragged edge of the screw after you’ve cut it down to the size.
Avoid slipping off the screw and damaging a lens by using this serrated dome made of hardened carbide steel.
It’s mounted in a carbon steel nickel-plated handle.

Ideal for screw with a maximum diameter of 1.6mm.
Can also be used on the temple core wires.