ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
| Payment Terms | T/T, L/C, D/P |
| Supply Ability | 400,0000Pcs Per Mouth |
| Delivery Time | 30-45days |
| Packaging Details | Plastic box,Double Blister card |
| Name | HSS Twist Drill Bits |
| Material | HSS and HSS Cobalt |
| Type | Twist Drill Bit |
| Process | Fully Ground |
| Size | 3.0mm-10mm |
| Shank | Tri Flats Shank |
| Hardness | 1 Name: Bright Finish Fully Ground Double Ended HSS Drill Bit for Stainless Steel Metal 2 Material: HSS (HSS Cobalt is Available) 3 Process: Fully Ground (Rolled & Polished, Rolled, Milled are Available) Standard: 4 Double Ended (DIN338, Stub DIN1897, |
| Surface | Bright Finish |
| Point angle | 118 Degree Regular Point |
| Use | Aluminium PVC Iron Drilling |
| Brand Name | XRTOOLS |
| Model Number | 3.0mm-10mm |
| Certification | ISO9000 |
| Place of Origin | JIANG SU |
View Detail Information
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Product Specification
| Payment Terms | T/T, L/C, D/P | Supply Ability | 400,0000Pcs Per Mouth |
| Delivery Time | 30-45days | Packaging Details | Plastic box,Double Blister card |
| Name | HSS Twist Drill Bits | Material | HSS and HSS Cobalt |
| Type | Twist Drill Bit | Process | Fully Ground |
| Size | 3.0mm-10mm | Shank | Tri Flats Shank |
| Hardness | 1 Name: Bright Finish Fully Ground Double Ended HSS Drill Bit for Stainless Steel Metal 2 Material: HSS (HSS Cobalt is Available) 3 Process: Fully Ground (Rolled & Polished, Rolled, Milled are Available) Standard: 4 Double Ended (DIN338, Stub DIN1897, | Surface | Bright Finish |
| Point angle | 118 Degree Regular Point | Use | Aluminium PVC Iron Drilling |
| Brand Name | XRTOOLS | Model Number | 3.0mm-10mm |
| Certification | ISO9000 | Place of Origin | JIANG SU |
| High Light | Double Ended HSS Drill Bit DIN338 | Stainless Steel Metal ，Fully Ground Two-in-One HSS Drill Bit | 135° Split Point ，Reversible HSS Cobalt Twist Drill Bit | 3.0mm-10mm Range | ||
Fully Ground Double Ended HSS Drill Bit DIN338 for Stainless Steel Metal
qucik detail :
1 Name: Double Ended HSS Drill Bit for Stainless Steel Metal
2 Material: HSS (HSS Cobalt is Available)
3 Process: Fully Ground (Rolled & Polished, Rolled, Milled are Available)
Standard:
4 Double Ended (DIN338, Stub DIN1897, Long DIN340, Extra Long DIN1869, DIN345 Taper Shank,Blacksmith Reduced Shank 10mm, 13mm are Available)
5 Point Type: 135 Degree Split Point (118 Degree Regular Point, Turbo Max Point, Pilot Point are Available)
6 Shank Type: Straight Shank
7 Helix Angle: Regular Spiral Type N
Double Ended (Metric Size)
| Diameter Flute | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) | |
| (mm) | Length (mm) | ||||||||||
| 3.0 | 10 | 46 | 4.1 | 13 | 55 | 5.2 | 16 | 62 | 8.0 | 25 | 79 |
| 3.1 | 10 | 46 | 4.2 | 13 | 55 | 5.5 | 19 | 66 | 8.5 | 25 | 79 |
| 3.2 | 10 | 49 | 4.5 | 16 | 58 | 6.0 | 19 | 66 | 9.0 | 25 | 84 |
| 3.3 | 10 | 49 | 4.8 | 16 | 58 | 6.5 | 21 | 70 | 9.5 | 25 | 84 |
| 3.5 | 13 | 52 | 5.0 | 16 | 62 | 7.0 | 23 | 74 | 10.0 | 25 | 89 |
How HSS Drill Bit is Made?
HSS drill bits are made with 0.85% C; 4% Cr; 5% Mo; 6% W; 2% V (M2). The main material is steel. By changing these material
proportions, its hardness can be varied. M1, M2, M7, M35, M50, M42 are the strength class of the HSS. Drill bits are made with
mostly M2.
| Type | Carbon (%) |
Tungsten (%) |
Molybdenum (%) |
Chromium (%) |
Vanadium (%) |
Cobalt (%) |
Hardness Rockwell C (%) |
Term |
| M1 | 0.80 | 1.50 | 8.00 | 4.00 | 1.00 | – | 63-65 | “HSS” |
| M2 | 0.85 | 6.00 | 5.00 | 4.00 | 1.90 | – | 63-65 | “HSS” |
| M7 | 1.00 | 1.75 | 8.75 | 4.00 | 2.00 | – | 63-65 | “HSS” |
| M35 | 0.80 | 6.00 | 5.00 | 4.00 | 2.00 | 5 | 65-67 | 5% Cobalt |
| M42 | 1.10 | 1.50 | 9.50 | 3.75 | 1.15 | 8 | 65-67 | Super Cobalt |
| M50 | 0.85 | 0.10 | 4.25 | 4.00 | 1.00 | – | 63-65 | “HSS” |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2018
Total Annual:
500-600
Employee Number:
135~150
Ecer Certification：
Verified Supplier
Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali... Jiangsu Xing Rui Precision Tools Co., Ltd. is a leading manufacturer of high-quality cutting tools in China, established in 2008 and located in Danyang, Jiangsu Province—a major hub for cutting tool production with convenient transportation for global logistics. Main Products We speciali...
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