--- product_id: 574219603 title: "3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4\"-3/4\"" brand: "columpro" price: "£55.69" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/574219603-3pcs-cobalt-single-end-countersink-chamfer-tool-set-tialn-coated store_origin: GB region: United Kingdom --- # TiAlN coating for extreme heat resistance M35 Cobalt HSS for unmatched durability 3 versatile sizes (2-5, 10-15, 15-20mm) 3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4"-3/4" **Brand:** columpro **Price:** £55.69 **Availability:** ✅ In Stock ## Summary > 🛠️ Elevate your craft with precision and power – don’t get left behind! ## Quick Answers - **What is this?** 3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4"-3/4" by columpro - **How much does it cost?** £55.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/574219603-3pcs-cobalt-single-end-countersink-chamfer-tool-set-tialn-coated) ## 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 - • **Precision Perfected:** 90-degree cone tip guarantees flawless centering and chatter-free, clean cuts every time. - • **Unrivaled Toughness:** M35 cobalt steel ensures long-lasting, heavy-duty performance even on stainless steel and high-performance alloys. - • **Organized & Portable:** Individual storage cases keep your bits secure and ready, eliminating downtime and lost tools. - • **Heat-Resistant Coating:** Advanced TiAlN finish withstands high temperatures, extending tool life and maintaining sharpness. - • **Versatile Compatibility:** Fits all your drills and milling machines—cordless, table, or impact drivers—empowering every project. ## Overview The ColumPRO 3PCS Countersink Chamfer Tool Set features premium M35 cobalt high-speed steel bits with a titanium aluminum nitride (TiAlN) coating for superior durability and heat resistance. Designed with a 90-degree cone tip and enlarged spiral flute, these bits deliver precise, chatter-free cuts and rapid chip ejection. Compatible with a wide range of drills and milling machines, this set includes three sizes (2-5mm, 10-15mm, 15-20mm) housed in individual cases for easy portability and organization. ## Description ColumPRO3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4"-3/4" ## Features - 【Premium Quality】Crafted from M35 Cobalt High Speed Steel with cobalt TiAlN 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 3 drill bits in varying sizes, with each of the 2-5MM, 10-15MM and 15-20MM countersink chamfer tools included, providing you with a complete package for all your drilling needs. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | ColumPRO | | Part number | O048-4PCS | | Item Weight | 191 g | | Package Dimensions | 19.3 x 11.51 x 3.81 cm; 191 g | | Manufacturer reference | O048-4PCS | | Style | M35 Cobalt HSS | | Finish | Titanium | | Material | Cobalt Steel | | Item Package Quantity | 1 | | Number Of Pieces | 3 | | Included components | 2-5mm,10-15mm,15-20mm countersink bits | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Material:** Cobalt Steel - **Cutting diameter:** 20 Millimeters - **Finish type:** Titanium - **Shank type:** Round Shank - **Cutting angle string:** 90 Degrees ## Images ![3PCS Cobalt Single-End Countersink Chamfer Tool Set -TiAlN Coated Heavy-Duty M35 90-Degree Countersink Bits for Metal, Stainless Steel, Copper, Wood, Fiberboard,2-5,10-15,15-20MM,1/4"-3/4" - Image 1](https://m.media-amazon.com/images/I/61qTfhzxYVL.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.co.uk/products/574219603-3pcs-cobalt-single-end-countersink-chamfer-tool-set-tialn-coated](https://www.desertcart.co.uk/products/574219603-3pcs-cobalt-single-end-countersink-chamfer-tool-set-tialn-coated) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*