Shopping security
The 29-Piece SAE Cobalt RED HELIX Twist Drill Bit Set is engineered for superior strength and long-lasting performance when drilling into hard metals. Its advanced Variable Helix geometry, ranging from 35° to 15°, promotes rapid chip evacuation, minimizes heat buildup, and helps maintain cutting sharpness during demanding applications.
The 135° QUAD EDGE split-point tip allows for accurate, no-walk starts, while the four-cutting-edge design produces smaller chips for smoother drilling and extended bit life. Built with a reinforced internal taper web for added durability and finished with a high-performance cobalt coating, these bits offer up to 15 times longer life than standard black oxide bits. Ideal for heavy-duty twist-drilling tasks, this set delivers precision, reliability, and professional-grade results.
| Specifications | Details |
|---|---|
| Set Size | 29 Pieces |
| Bit Type | SAE Twist Drill Bits |
| Material | Cobalt Steel |
| Point Angle | 135° QUAD EDGE Split Point |
| Helix Design | Variable Helix (35° to 15°) |
| Cutting Edges | 4 Cutting Edges |
| Coating | Cobalt Coated |
| Application | Hard Metals and Heavy-Duty Drilling |
| Durability | Up to 15X Longer Life than Black Oxide Bits |
Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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