Home > Products > HSS Drill Bit > GOST 886-77 Long series HSS Twist Drill Bit
GOST 886-77 Long series HSS Twist Drill Bit
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Product Details
| Place of Origin | Jiangsu, China | Brand Name | TONGYU | |
| Model Number | TY10-GOST1 | Type | Twist Drill Bit | |
| Material | High Speed Steel | Use | Metal Drilling |
Product Description
Specifications
1.High speed steel Material.2.Strict heat treatment
3.Precisely Processing.
GOST GOST 886-77 Long Series Fully Ground HSS Twist Drill Bit
Specification:
| 1. Standard: | GOST 886-77(DIN340, long series) |
| 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: | Fully Ground |
5. Point angle | 118 degree or 135 degree split point |
6. Surface finishing: | Bright finishing;Tin-coated; or customization |
| 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: 1mm-13mm
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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Contact Us
- Danyang Tongyu Tools Co., Ltd.
- Contact nameDavid Yu Chat Now
- Phone0086-511-86325949
- AddressRm. 5, Bldg. 05, Binjiang New City, Houxiang, Danbei Town
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