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🔧 Elevate your craft with precision-engineered countersinks that mean business.
The ColumPRO 4PCS Cobalt Single-End Countersink Chamfer Tool Set features four heavy-duty M35 cobalt high-speed steel bits with a 90-degree cutting angle. Designed for metal, stainless steel, copper, wood, and fiberboard, these bits deliver precise, chatter-free chamfering with rapid chip ejection. Compatible with a wide range of drilling machines and impact drivers, this set comes neatly organized in a portable case, making it an essential upgrade for professionals and serious DIY enthusiasts.




| ASIN | B0CP22JJD4 |
| Best Sellers Rank | #24,563 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Countersink Drill Bits |
| Brand Name | ColumPRO |
| Customer Reviews | 4.7 4.7 out of 5 stars (152) |
| Cutting Angle String | 90 degrees |
| Finish Types | Cobalt |
| Item Dimensions | 7.5 x 4.7 x 1.61 inches |
| Manufacturer | ColumPRO |
| Material Type | Cobalt High Speed Steel |
| Number of Flutes | 3 |
| Number of Pieces | 4 |
| Part Number | O048-4PACK |
| Set Name | ColumPRO 4PCS Cobalt Single-End Countersink Chamfer Tool Set |
| Shank Type | Straight |
| Surface Recommendation | Copper, Glass, Metal, Wood |
| Tool Flute Type | Spiral |
| Unit Count | 4 Count |
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