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⚡ Drill Smarter, Last Longer — Own the Toughest Jobs with Cobalt Power!
The STROTON Cobalt Drill Bit Set features 17 precision-engineered bits made from premium 5% cobalt high-speed steel, delivering exceptional hardness (68 HRC) and heat resistance. Designed for professional-grade drilling through stainless steel, hard metals, plastics, and wood, this set runs 2-3 times faster than standard bits, reducing wear and cost per hole. Its split point design prevents walking, ensuring clean, accurate starts every time. Ideal for managers and makers who demand efficiency and reliability in their toolkit.


















| ASIN | B09MRW8399 |
| ASIN | B09MRW8399 |
| Best Sellers Rank | #163,204 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #666 in Power Drill Bit Sets |
| Brand Name | STROTON |
| Customer Reviews | 4.5 4.5 out of 5 stars (519) |
| Customer reviews | 4.5 4.5 out of 5 stars (519) |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 0.5 Inches |
| Date First Available | 24 April 2022 |
| Finish Types | High Speed Steel,Stainless Steel |
| Item Dimensions | 18 x 13 x 4 centimeters |
| Item model number | Cobalt 6 series bits inch 1/16-1/2 |
| Manufacturer | STROTON Ltd |
| Manufacturer | STROTON Ltd |
| Material Type | Cobalt |
| Minimum Bore Diameter | 0.06 Inches |
| Model | Cobalt 6 series bits inch 1/16-1/2 |
| Number of Flutes | 2 |
| Number of Pieces | 17 |
| Part Number | Cobalt 6 series bits inch 1/16-1/2 |
| Point Style | Split Point |
| Product Dimensions | 18 x 13 x 4 cm; 516 g |
| Set Name | 17-Piece Set |
| Shank Type | (1/16-7/32: Round Shank) (1/4-1/2: 3-Flat Shank) |
| Surface Recommendation | Metal, Plastic, Wood |
| Tool Flute Type | Spiral |
| UPC | 643459994935 |
| Unit Count | 1 Count |
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