Shopping security
Built for extreme performance in tough metals, the 12.5mm Cobalt RED HELIX™ Twist Drill Bit delivers exceptional strength, speed, and longevity. Its advanced variable helix design—transitioning from a 35° to 15° angle—promotes fast chip evacuation, lowers heat buildup, and helps maintain a sharp cutting edge. The precision-ground 135° QUAD EDGE™ split point enables accurate, no-walk starts for clean, consistent holes. Four cutting edges produce smaller chips for smoother drilling and reduced friction, while the reinforced taper web enhances core strength to resist breakage. Finished with a durable cobalt coating, this bit provides up to 10x longer life than standard black oxide bits, making it ideal for demanding drilling applications.
| Specifications | Details |
|---|---|
| Product Type | Cobalt Twist Drill Bit |
| Bit Size | 12.5 mm |
| Material | Cobalt Steel |
| Helix Design | Variable Helix (35° to 15°) |
| Tip Type | 135° QUAD EDGE™ Split Point |
| Cutting Edges | 4 Cutting Edges |
| Web Design | Reinforced Internal Taper Web |
| Coating | Cobalt Coating |
| Application | Hard Metals & Heavy-Duty Drilling |
| Durability | Up to 10X Life vs Black Oxide Bits |
Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order