Spiral flutes guarantee quiet running and high cutting performance;
Chipbreaker cuts chippings more quickly and easily
Enalrging holes in sheet metals without the need of center punch or pilot. using either a bench drill or light pedestal drilling machines.

Material: M2 HSS , M35 Hss Co.
Surface Finish: Bright finish, TIN coated, TiCn Coated, TiaLN Coated.
Shank style: round shank, three flatted shank, hex shank;