--- product_id: 589686464 title: "4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4\"-3/4\", 2-5, 5-10, 10-15, 15-20MM" brand: "columpro" price: "€ 90.10" currency: EUR in_stock: true category: "Colum Pro" url: https://www.desertcart.at/products/589686464-4pcs-cobalt-single-end-countersink-chamfer-tool-set-heavy-duty store_origin: AT region: Austria --- # Spiral flute design - rapid chip ejection, no clogging 90° precision cone tip - perfect centering & clean cuts M35 Cobalt High-Speed Steel - unmatched durability 4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4"-3/4", 2-5, 5-10, 10-15, 15-20MM **Brand:** columpro **Price:** € 90.10 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your craft with precision-engineered countersinks that mean business. ## Quick Answers - **What is this?** 4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4"-3/4", 2-5, 5-10, 10-15, 15-20MM by columpro - **How much does it cost?** € 90.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/589686464-4pcs-cobalt-single-end-countersink-chamfer-tool-set-heavy-duty) ## Best For - columpro enthusiasts ## Why This Product - Trusted columpro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Organized On-the-Go:** Includes four size-varied bits in a sleek storage case, so you never lose your edge or your tools. - • **Precision Every Time:** 90-degree cone tip guarantees flawless centering and chatter-free chamfering on metals, wood, and composites. - • **Effortless Chip Management:** Innovative spiral flute design rapidly ejects debris, keeping your workflow smooth and uninterrupted. - • **Versatility Meets Convenience:** Compatible with drills, milling machines, and impact drivers—perfect for pros and DIYers alike. - • **Built to Last, Built to Perform:** Crafted from premium M35 cobalt steel for extreme toughness and heat resistance, ensuring longevity in heavy-duty projects. ## Overview 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. ## Description Buy ColumPRO 4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4"-3/4", 2-5, 5-10, 10-15, 15-20MM: Industrial & Scientific - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 【Premium Quality】Crafted from M35 Cobalt High Speed Steel with cobalt coating, our countersink drill bits boast unparalleled toughness, high temperature threshold and long-term durability, delivering consistently exceptional results. - 【Impressive Performance】Used after pre-drilling for screws or deburring holes as well as chamfering the edge of a part, they cut cleanly and are chatter-free. The cone tip assures accurate centering, also the enlarged spiral flute prevents chips from clogging and ejects chips rapidly. Designed to handle tough materials like stainless steel and other high-performance alloys. - 【Versatile Application】Our drill bits are compatible for use with a range of drilling machines, table drills, milling machines, cordless drills and impact drivers. Perfect for machinists, DIY enthusiasts and homeowners. - 【Portable & Convenient】Our countersink chamfer tools come with individual storage cases for easy portability. Say goodbye to lost bits and restless searches for the right tool. - 【Comprehensive Set】This set includes 4 drill bits in varying sizes, with each of the 2-5MM, 5-10MM, 10-15MM and 15-20MM countersink chamfer tools included, providing you with a complete package for all your drilling needs. ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Brand:** ColumPRO - **Cutting Angle String:** 90 degrees - **Finish Type:** Cobalt - **Material:** Cobalt High Speed Steel - **Shank Type:** Straight ## Images ![4PCS Cobalt Single-End Countersink Chamfer Tool Set - Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,SAE 1/4"-3/4", 2-5, 5-10, 10-15, 15-20MM - Image 1](https://m.media-amazon.com/images/I/61cfdU+TxUL.jpg) ## Available Options This product comes in different **Style** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/589686464-4pcs-cobalt-single-end-countersink-chamfer-tool-set-heavy-duty](https://www.desertcart.at/products/589686464-4pcs-cobalt-single-end-countersink-chamfer-tool-set-heavy-duty) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-09-05*