GOST 10903-77 Morse Taper Shank Drill Bit
USD $1.3 - $150 /Piece
Min.Order:100 Pieces
Danyang Tongyu Tools Co., Ltd.
GOST 10903-77 Morse taper shank drill bit
Specification:
1. Standard: | GOST 10903-77(DIN345) |
2. Material: | HSS 4241(W4Mo2Cr4V), HSS 4341(W4Mo3Cr4V), HSS 6542(W6Mo5Cr4V2), M35 (W6Mo5Cr4V2Co5) |
3. Hardness: | HSS4241: HRC59-61, HSS4341:HRC63-64, HSS 6542:64-65, HSS M35:HRC 66-67 |
4. Processing: | Milled & welding( 70% flute length is HSS or total flute length is HSS |
5. Point angle | 118 degree or 135 degree split point |
6. Surface finishing: | Bright finishing;Black Oxide;Tin-coated |
7.Application: | For drilling cast steel, malleable iron, sintered metal, non-ferrous metal etc. Surface finishing will highly improve the drill bit’s life span. |
8. Size: diameter from 5mm to 100mm
The quality of HSS tools are basically decided by HSS raw material and heat treatment. We can keep a strict control of these procedure.
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