Description
Overview:
The Addax HSS Cobalt Jobber Drill (Dia 4.2mm x Length 75mm) is a straight‐shank twist drill for precise drilling in hard and abrasive metals. Made from cobalt‐alloyed high‐speed steel and roll forged to DIN 338, it offers strong heat resistance and durability under continuous use. The jobber length and cylindrical shank suit standard three‐jaw chucks on cordless and corded drill drivers, as well as pillar drills and bench drills. Its 4.2mm diameter is a common tapping size for M5 threads (when used as a pilot before tapping). Built for stainless steel and chromium‐nickel alloys, it provides reliable performance where standard HSS bits struggle. Manufacturer Part Number (MPN): 902 0619. Brand: Addax.
Key Features:
- 4.2mm diameter for accurate holes; commonly used as the M5 tapping size pilot
- 75mm overall jobber length to DIN 338 for dependable reach and compatibility
- Cobalt‐alloyed HSS construction for high heat resistance and long tool life
- Roll forged for added toughness and reduced risk of breakage under load
- Standard twist drill geometry for effective chip removal in metalworking
- Straight shank fits conventional three‐jaw chucks for quick, secure installation
- Performs well on stainless steel and Cr‐Ni alloys where ordinary HSS can overheat
- Consistent size tolerance and concentricity help produce round, true holes
- Suitable for handheld drills and drill presses; use cutting fluid for best results
- Reliable option for workshop, site, and maintenance tasks
Typical Applications:
Drilling pilot and clearance holes in stainless steel, Cr‐Ni alloys, mild and alloy steels, and sheet metal. Ideal for fabrications, brackets, machine guards, HVAC ducting, automotive repairs, site maintenance, and metal fixings. Commonly used to create the pilot hole before tapping M5 threads in fixtures and assemblies.
Also known as:
Metal drill bit, high‐speed steel drill, cobalt bit, jobber bit, twist drill for metal, HSS‐Co drill, cobalt alloy twist bit, stainless steel drilling bit, jobber‐length twist drill.
Product Specifications
| L&S Part No. | 902 0619 |
|---|---|
| Manufacturer | Addax |
| Unit of Sale | 1 Piece |
| Machine Type | Drills |
| Key Features | - 4.2mm diameter for M5 thread pilot holes - 75mm length, DIN 338 compliant - Cobalt-alloyed HSS for heat resistance - Roll forged for toughness and durability - Fits standard three-jaw chucks |
