We produce all kinds of HSS twist drill bits
Details
1)standard:DIN338,DIN340,DIN341,DIN345
2)material:HSS4241 HSS4341 HSS6542(M2) M35 HSS9341
3)manufactory process:roll forged,edge ground,fully ground,milled
4)point angle:118 degree,135 degree split point
5)surface finished:bright finished,black oxide,tin oxide,black flute & bright shank,rainbow
6)flute type:N or VA