Complaint
| Raw Material | Carbide, Tungsten Cobalt Alloy, tungsten carbide |
| Coating | AlTiN, TiAlN, TiSiN, AlTiSiN, TiN, Nano, or as your requirements |
| Overall Length | 38-330mm (customized is acceptable) |
| Flute Diameter | 0.3-40mm (customized is acceptable) |
| Diameter | 4-40mm (customized is acceptable) |
| Precision | 0.005-0.01 (high precision) |
| HRC | 45/50/55/65 HRC |
| Controlling Mode | cnc tooling system |
| Processing Type | Finishing Maching |
| Suitable for | wood, cast iron, carbon steel, mould steel, stainless steel, titanium alloy, tool steel, and heat-treated steel, etc |
Products Features:
1. Special Designed Drill Tip: Special designed drill tip will increase the Centering Ability and Chip breaker ability. Thus, the processing efficiency will be increased.
2. Much Sharper Cutting Edge: The much sharper cutting edge can decrease the cutting resistance and and torque. The lifetime of tools and machines will be longer.
3. Heat-resistant Coating: With highly heat-resistant HELICA/ALTIN coating, can be used for high-speed processing.
4. Smooth and Wide Flute:Smooth and wide flute will remove the cuttings more easily.
5. High Quality Raw Material: The raw material is used of high toughness, grain-sized carbon tungsten.
6. Polished Surface Treatment: With high polished surface treatment, the friction coefficient could be reduced, the lathe efficiency could be improved, more production time could be saved.
Products Detail:
| Twist Drill Bits-20D | ||||||
| d1 | d2 | L1 | L2 | L3 | L4 | Coolant solution |
| 3.00 | 3.00 | 101 | 68 | 63 | 30 | Inner Coolant |
| 3.50 | 4.00 | 125 | 79 | 74 | 32 | Inner Coolant |
| 4.00 | 4.00 | 125 | 90 | 84 | 32 | Inner Coolant |
| 4.50 | 5.00 | 149 | 101 | 95 | 34 | Inner Coolant |
| 5.00 | 5.00 | 149 | 112 | 105 | 34 | Inner Coolant |
| 5.50 | 6.00 | 173 | 123 | 116 | 36 | Inner Coolant |
| 6.00 | 6.00 | 173 | 134 | 126 | 36 | Inner Coolant |
| 6.50 | 7.00 | 197 | 145 | 137 | 38 | Inner Coolant |
| 7.00 | 7.00 | 197 | 158 | 147 | 38 | Inner Coolant |
| 7.50 | 8.00 | 221 | 167 | 158 | 40 | Inner Coolant |
| 8.00 | 8.50 | 221 | 178 | 169 | 40 | Inner Coolant |
| 8.50 | 9.00 | 245 | 189 | 183 | 42 | Inner Coolant |
| 9.00 | 9.50 | 245 | 200 | 189 | 42 | Inner Coolant |
| 9.50 | 10.00 | 269 | 211 | 200 | 44 | Inner Coolant |
| 10.00 | 10.00 | 269 | 222 | 210 | 44 | Inner Coolant |
| Customized Tools are Acceptable | ||||||
