M42 HSS Cobalt Drill Bit For Metal , 135 Degree Split-Point Drills
M42 HSS Cobalt Drill Bit For Metal , 135 Degree Split-Point Drills
Description of DIN340 HSS Drill Bits:
- The cobalt drill bits’ capacity to bore through the toughest materials is truly remarkable.
They are made from a reinforced alloy of combined cobalt and steel.
Coated with metal oxide, cobalt bits are heat-resistant and durable.
Some drill bits have a gold oxide finish that acts as a lubricant.
The coating helps the bits withstand the extreme friction during prolonged drilling.
| DESCRIPTION OF HSS | C | W | Mo | Cr | V | Co | Si | Mn | P | S |
| % | % | % | % | % | % | % | % | % | % | |
| W2MoCr4V(F4341) | 0.95-1.05 | 1.7-2.4 | 0.8-1.2 | 3.8-4.4 | 0.8-1.2 | 1.0-1.4 | 0.2-0.4 | <=0.03 | <=0.03 | |
| W4Mo3Cr4V(4341) | 0.88-0.98 | 3.5-4.5 | 2.5-3.5 | 3.8-4.4 | 1.2-1.8 | 0.5-1.2 | 0.2-0.4 | <=0.03 | <=0.03 | |
| W9Mo3Cr4V(9341) | 0.77-0.87 | 8.5-9.5 | 2.7-3.3 | 3.8-4.4 | 1.3-1.7 | - | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W6Mo5Cr4V2(M2) | 0.8-0.9 | 5.5-6.75 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | - | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W6Mo5Cr4V2Co5(M35) | 0.9-0.95 | 5.5-6.5 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | 4.5-5.5 | 0.2-0.4 | 0.2-0.4 | <=0.03 | <=0.03 |
| W2Mo9Cr4V2Co8(M42) | 1.05-1.15 | 1.15-1.85 | 9.0-10.0 | 3.5-4.25 | 0.95-1.25 | 7.75-8.75 | 0.15-0.65 | 0.15-0.4 | <=0.02 | <=0.025 |
How many benefits you get from cobalt drill bits:
Durability
The higher the amount of cobalt in the drill bits, the greater is their heat resistance.
If you want sturdier and high-performing bits, M42-grade will give you satisfaction.
It has 8% cobalt content that makes the alloy material extremely durable.
Another option is M35-grade, which has about 5% cobalt value.
Cobalt drill bits can handle up to 1100 degrees Fahrenheit or 593 degrees Celsius without breaking.
Made From HIGH-SPEED Steel and 5% Cobalt,improve much higher heat resistance because of cobalt steel's high
red hardness, provide strong durable performance compared to typical hss drill bits
Accurate and Neat: 135°Quick-Cut points are self-centering and penetrate quickly with less pressure.
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