drill bit

详情

1. Standard: 1.***5.0mm for DIN**8, DIN***7, DIN**0; 1/*6"*1" for ASME, screw machine, taper length.
2. Steel material: M2(***2), M*5, M*2, HSS***1, HSS***1, HSS ***1
3. Process: Fully ground, milled, polished, roll forged
4. Point angel: **8degree, **8degree split point, **5degree split point
5. Surfce finishing: Bright finished, black oxide, Tin-coated, black & white, black & gold, coffee color.
6. Shank: Straight shank, reduced shank, taper shank
7. Hardness: *-* * *:*@********************/body>