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Step drill bit with 2mm increments
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Perfect for drilling into steel, brass, copper, aluminium, wood and plastics
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Manufactured from good quality high-speed steel, correctly hardened for a longer life
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Drill steps marked at graduations: 4, 6, 8, 10, 12, 14, 16, 18, 20m
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Application
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HSS Grade
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Iron
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Aluminum
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Carbon Steel
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Tile
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Plastic
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Stainless Steel
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4241
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YES
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YES
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NO
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NO
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YES
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NO
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| 4341 | YES | YES | YES | NO | YES | YES |
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6542(M2)
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YES
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YES
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YES
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NO
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YES
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GOOD
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M35 (Co 5%)
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YES
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YES
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YES
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NO
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YES
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VERY GOOD
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| DESCRIPTION OF HSS | C | W | Mo | Cr | V | Co | Si | Mn | P | S |
| % | % | % | % | % | % | % | % | % | % | |
| 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 | |
| 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 |
| Metric size | SIZE RANGE | INCREMENT | STEP NO. | SHANK |
| 4-12 | 1mm | 9 | 6mm | |
| 4-12 | 2mm | 5 | 6mm | |
| 4-20 | 2mm | 9 | 8mm | |
| 4-22 | 2mm | 10 | 8mm | |
| 5-35 | 2-3mm | 13 | 13mm | |
| 6-12 | 1mm | 7 | 8mm | |
| 6-18 | 2mm | 7 | 10mm | |
| 6-20 | 2mm | 8 | 10mm | |
| 6-30 | 2mm | 13 | 10mm | |
| 6-30 | 2-3mm | 12 | 10mm | |
| 6-38 | 2-3mm | 12 | 10mm | |
| 9-36 | 3mm | 10 | 10mm | |
| 10-20 | 1mm | 11 | 10mm | |
| 10-45 | 5mm | 8 | 13mm | |
| 12-20 | 1mm | 9 | 10mm | |
| 14-24 | 2mm | 6 | 13mm | |
| 20-30 | 1mm | 11 | 13mm | |
| 20-34 | 2mm | 8 | 13mm | |
| Imperial size | 1/8″-1/2″ | 1/32″ | 13 | 1/4″ |
| 3/16″-1/2″ | 1/16″ | 6 | 1/4″ | |
| 1/4″-3/4″ | 1/16″ | 9 | 3/8″ | |
| 3/16″-7/8″ | 1/16″ | 12 | 3/8″ | |
| 9/16″-1″ | 1/16″ | 8 | 1/2″ | |
| 13/16″-1-3/8″ | 1/16″ | 10 | 1/2″ | |
| 1/4″-1-3/8″ | 1/8″ | 10 |
1/2 “ |
Custom OEM/ODM Solutions
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Product Customization:
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Submit your design drawings or physical samples – we engineer precision twist drills tailored to your specifications.
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Optimize existing tools for enhanced durability, cutting speed, or cost efficiency.
Packaging Design
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Retail-Ready Solutions:
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Custom-branded boxes, multi-language manuals, or eco-friendly packaging.
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Design-to-delivery support for seamless market entry.
