high quality twist long drill for metal

Manufacture, factory price

strict quality control
plenty experience
timely delivery
OEM acceptable

1. Steel material:  HSS4241,4341,M2,M35
2. Process: Fully ground, milled, roll forged
3. Point angel: 118degree, 118degree split point, 135degree split point
4. Surfce finishing: Bright finished, black oxide, Tin-coated, black & white, black & gold,
coffee color.
5. Shank: Straight shank, reduced shank, taper shank taper shank drill bit twist drill bit
6. Hardness: 60-66HRC
7. 5/10 pieces packind in PVC bag, then in white paper box, then in carton

Skype:peter_tools