Brass wing screw M12 x 35mm

Brass wing screw M12 x 35mm
as a replacement for the normally fitted M12x12mm grub screws (2 in each system jaw).
The wing screw can be tightened by hand to save timewithout the aid of a hexagon key (Allen key).
It is used to fix the system jaws when milling and turning
and thus gives the system jaws additional stability!