We produce all kinds of hss twist drills,the material can be 4241#,4341#,9341#,M2,
The manufacture process can be roll forged,edge ground,fully ground,mill
the point can be 118 degree, 135 split point,
the standard can be: din338,din340,din345,din1897,ansi b94.11m and so on.
our regular clients are BOSCH,WUERTH,B&D,SANDVIK,STANLEY, and so on.