Description
Overview:
The Addax HSS Cobalt Jobber Drill is a heavy-duty twist drill bit designed for reliable drilling in tough metals. Made from high-speed cobalt steel, it offers high heat resistance and wear life, making it well suited to stainless steel and chrome‐nickel (Cr‐Ni) alloys where standard HSS bits can struggle. This 12.5 mm diameter (0.49 inches) bit has an overall length of 151 mm (5.94 inches) and is roll forged to DIN 338 jobber specifications for consistent accuracy. It fits standard 13 mm (1/2 inch, 12.7 mm) or larger chucks commonly found on corded and cordless drills, as well as pillar drills. Manufacturer Part Number: 902 0639. A practical choice for fabrication, maintenance, and workshop use where dependable performance is required.
Key Features:
- 12.5 mm diameter (0.49 inches) for precise, clean holes in tough metals
- 151 mm overall length (5.94 inches) to DIN 338 jobber standards for consistency
- High-speed cobalt steel for superior heat resistance and long service life
- Roll-forged construction for strength, concentricity, and durability
- Optimised for stainless steel and Cr‐Ni alloys to reduce work hardening and chatter
- Cylindrical shank fits standard 13 mm (1/2 inch, 12.7 mm) chucks
- Suitable for use in hand drills and pillar drills; performs best with steady feed and correct speeds
- Reliable performance in demanding conditions with appropriate cutting fluid
- Addax quality with practical sizing for workshop and site tasks
- MPN: 902 0639 for easy identification and reordering
Typical Applications:
Drilling holes in stainless steel sheet, plate, and bar; fabricating brackets, guards, handrails, and panels; maintenance and repair tasks on machinery and plant; workshop and site metalworking where heat and hardness challenge ordinary bits. Suitable for use in cordless drills, corded drills, and pillar drills with a 13 mm (1/2 inch, 12.7 mm) chuck.
Also known as:
HSS‐Co jobber drill, cobalt twist drill bit, metal drill bit, cobalt HSS drill, jobber length twist drill, 12.5 mm metal drill, cobalt steel drill bit.
Product Specifications
| L&S Part No. | 902 0639 |
|---|---|
| Manufacturer | Addax |
| Unit of Sale | 1 Piece |
| Machine Type | Drills |
| Key Features | - 12.5 mm diameter for precise holes in tough metals - 151 mm length to DIN 338 jobber standards - High-speed cobalt steel for heat resistance - Fits standard 13 mm chucks - Optimised for stainless steel and Cr‐Ni alloys |
