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 | 1mm-20mm |
| Shank | Tri Flats Shank |
| Hardness | HRC65-67 |
| Surface | Bright Finish |
| Point angle | 118 Degree Regular Point |
| Use | Aluminium PVC Iron Drilling |
| Brand Name | XRTOOLS |
| Model Number | 1mm-20mm |
| 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 | 1mm-20mm | Shank | Tri Flats Shank |
| Hardness | HRC65-67 | Surface | Bright Finish |
| Point angle | 118 Degree Regular Point | Use | Aluminium PVC Iron Drilling |
| Brand Name | XRTOOLS | Model Number | 1mm-20mm |
| Certification | ISO9000 | Place of Origin | JIANG SU |
| High Light | hss cobalt drill bit set ，1mm hss drill bit ，hrc65 hss drill bit | ||
135° Quick-Cut Points .DIN 338 HSS Drill Bit Bit For Aluminium PVC Iron Drilling
Features:
1.Hss Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal,
they are a good investment since they tend to last longer.
2.No center punch is needed—the aggressive 135° Quick-Cut points are self-centering and penetrate quickly
with lesspressure. Will not "walk" or "wander".
3.Thick core for increased rigidity in hard materials.
4.Ground flutes provide fast chip removal to maximize accuracy and efficiency along the full working surface of the bit.
5.DIN 338 series drill bits are ideal for many trade and industrial projects.
size :
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 1.0 | 12 | 34 | 5.0 | 52 | 86 |
| 1.5 | 20 | 43 | 5.2 | 52 | 86 |
| 3.0 | 33 | 61 | 6.5 | 63 | 101 |
| 3.2 | 36 | 65 | 7.0 | 69 | 109 |
| 3.5 | 39 | 70 | 7.5 | 69 | 109 |
| 4.0 | 43 | 75 | 8.0 | 75 | 117 |
| 4.2 | 43 | 75 | 8.5 | 75 | 117 |
| 4.5 | 47 | 80 | 9.0 | 81 | 125 |
| 9.5 | 81 | 125 | 15.0 | 114 | 169 |
| 10.0 | 87 | 133 | 15.5 | 120 | 178 |
| 10.5 | 87 | 133 | 16.0 | 120 | 178 |
| 12.0 | 101 | 151 | 17.5 | 130 | 191 |
| 12.5 | 101 | 151 | 18.0 | 130 | 191 |
| 13.0 | 101 | 151 | 18.5 | 135 | 193 |
| 13.5 | 108 | 160 | 19.0 | 135 | 198 |
| 14.0 | 103 | 160 | 19.5 | 140 | 205 |
| 14.5 | 114 | 169 | 20.0 | 140 | 205 |
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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