Description
Overview:
The Addax HSS Cobalt Jobber Drill is a 3.5 mm diameter metal drilling bit designed for accurate, reliable performance in tough materials. Made from high‐speed cobalt steel (HSS‐Co) and roll forged for extra toughness, it resists heat build‐up during continuous drilling and keeps a sharp cutting edge for longer. It measures 70 mm overall length (2.76 inches) with a 3.5 mm (0.14 inches) cutting diameter, and is manufactured to DIN 338 for consistent geometry and tolerance. The standard jobber length and straight shank make it suitable for use in cordless drills, mains-powered hand drills, drill presses, and pillar drills with a standard three‐jaw chuck. Ideal for stainless steel and chromium‐nickel alloys, it also performs well on many other steels and harder metals.
Key Features:
- 3.5 mm diameter (0.14 inches) and 70 mm length (2.76 inches) for general-purpose metal drilling
- High-speed cobalt steel construction for superior hot hardness and wear resistance
- Roll forged for added toughness and longevity under demanding workloads
- Built to DIN 338 for consistent flute geometry and precise sizing
- Jobber length for a good balance of rigidity and reach
- Straight shank for secure grip in standard 3‐jaw chucks
- Suitable for stainless steel and Cr‐Ni alloys where heat and work-hardening are issues
- Resists premature dulling in high-temperature applications
- Smooth cutting action helps produce clean, accurate holes with reduced wander
- Compatible with cordless drills, mains drills, drill presses, and pillar drills
- Can be re‐sharpened with appropriate equipment to extend service life
Typical Applications:
Everyday drilling in stainless steel sheet, plate, and tube; chromium‐nickel alloys; medium to high‐carbon steel; and other hard metals. Common in site fabrication, maintenance and repair (MRO), metal workshops, electrical containment work, HVAC brackets, automotive fasteners, and general engineering tasks where durability and accuracy matter.
Also known as:
HSS‐Co jobber drill, cobalt steel twist drill, jobber‐length metal bit, cobalt metal drill, high‐temperature drill bit for stainless, straight‐shank twist bit for steel, precision metalworking drill.
Product Specifications
| L&S Part No. | 902 0617 |
|---|---|
| Manufacturer | Addax |
| Unit of Sale | 1 Piece |
| Machine Type | Drills |
| Key Features | - 3.5 mm diameter, 70 mm length for metal drilling - High-speed cobalt steel for heat resistance - Roll forged for toughness and longevity - Built to DIN 338 for precise sizing - Suitable for stainless steel and Cr-Ni alloys |

