Diager 502B HSS-TIN Step Drill Bit 4-30
The Diager 502B HSS-TIN Step Drill Bit 4-30 is designed for clean step drilling, hole enlargement, deburring, and sheet material drilling in compatible metal, plastic, and composite applications. Built with fully ground HSS TIAIN 5% cobalt construction, TIAIN nitride coating, helicoidal flute, deburring tool, and three-flat shank, this step drill bit supports efficient penetration, cleaner holes, and secure chuck tightening. The Diager 502B Step Drill Bit is suitable for drilling alloy steel, stainless steel, non-alloy steel, aluminum, composite, copper, cast iron, spheroidal cast iron, brass, and plastic. Its TIAIN coating helps extend tool life and improve high-temperature resistance, while the helical flute supports better penetration inside the material.
Sold per unit. Brand and stock confirmed on your quote.
Specifications
| Brand | Diager |
| Model | 502B |
| Product Type | HSS-TIN Step Drill Bit Step Range 4-30 |
| Material | Fully Ground HSS TIAIN 5% |
| Cobalt Coating | TIAIN |
| Nitride Coating | Flute Design Helicoidal flute Tool Feature Deburring tool |
| Shank Type | Shank with three flats |
Description
Key Benefits
- TIAIN nitride coating helps extend tool life and improve high-temperature resistance.
- Helicoidal flute supports improved penetration inside compatible materials.
- Deburring tool helps produce cleaner holes during step drilling applications.
Ideal Applications
- Step drilling, hole enlargement, deburring, and clean hole preparation.
- Drilling alloy steel, stainless steel, non-alloy steel, aluminum, composite, copper, cast iron, brass, and plastic.
- Use by metalworkers, fabricators, electricians, installers, technicians, maintenance teams, and professional users.
Applications
Alloy steel, stainless steel, non-alloy steel, aluminum, composite, copper, cast iron, spheroidal cast iron, brass, and plastic Use Step drilling, hole enlargement, deburring, clean hole preparation, sheet material drilling, metalworking, fabrication, installation, repair, maintenance, and professional drilling applications
What’s Included
1 pc Diager 502B HSS-TIN Step Drill Bit 4-30
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