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HSS-G Jobber Drill Bits | Metric & Imperial | Packs of 10 | Castlebrook
£4.50
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£4.50
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HSS-G Jobber Drill Bits
Castlebrook's HSS-G Jobber Drill Bits are precision-ground for reliable, accurate drilling across a wide range of materials. With a standard helix right-hand cut and 135° split point, these bits deliver clean, consistent holes with minimal effort — whether you're working in steel, cast iron, non-ferrous metals or hard plastics.
Key Features
- HSS-G Ground Flutes — Precision-ground flutes for superior finish, tighter tolerances, and longer tool life
- 135° Split Point — Self-centring tip reduces walking and eliminates the need for a centre punch
- Standard Helix, Right Hand Cut — Optimised chip evacuation for smooth, efficient drilling
- Blue Oxide Surface Treatment — Improves lubrication and heat resistance for extended bit life
- Manufactured to DIN 338 — Industry-standard specification ensuring consistent quality and compatibility
- Full Metric & Imperial Range — Available in a comprehensive range of sizes to suit every application
Suitable For
- Steel and high tensile steel up to 900N/mm²
- Cast steel and cast iron
- Non-ferrous metals
- Hard plastics
A dependable everyday drill bit for engineers, fabricators, and tradespeople who need consistent performance across a broad range of materials.