--- product_id: 29374403 title: "Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2" brand: "chiloskit" price: "115.68 DT" currency: TND in_stock: true category: "Chiloskit" url: https://www.desertcart.tn/products/29374403-countersink-drill-bit-set-for-steel-3-flute-90-degree store_origin: TN region: Tunisia --- # 6 precision sizes from 6.3mm to 20.5mm HSS 4231 steel resists heat & corrosion 3-flute design for smooth chip removal Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 **Brand:** chiloskit **Price:** 115.68 DT **Availability:** βœ… In Stock ## Summary > πŸ”§ Elevate your DIY game with precision that professionals trust! ## Quick Answers - **What is this?** Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 by chiloskit - **How much does it cost?** 115.68 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/29374403-countersink-drill-bit-set-for-steel-3-flute-90-degree) ## Best For - chiloskit enthusiasts ## Why This Product - Trusted chiloskit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Complete Size Range:** 6-piece set covers all common drilling needs with round shanks for easy tool compatibility - β€’ **Durable High-Speed Steel:** Crafted from premium HSS 4231 for superior heat, rust, and corrosion resistance - β€’ **Optimized Chip Evacuation:** 3-flute one-piece design prevents clogging, boosting your workflow efficiency - β€’ **Effortless Precision Chamfering:** 90Β° cutting angle ensures clean, professional countersinks every time - β€’ **Versatile Material Compatibility:** Perfect for carbon steel, aluminum, wood, PVC & more (under 45HRC hardness) ## Overview This 6-piece Countersink Drill Bit Set by Chiloskit features high-speed steel (HSS 4231) construction with a 3-flute, 90Β° cutting angle design. Engineered for efficient chip removal and durability, it works seamlessly on carbon steel, aluminum, wood, and PVC materials under 45HRC hardness. The set includes six popular sizes (6.3mm to 20.5mm) with round shanks, ideal for metalworking and woodworking projects requiring clean, precise chamfering. ## Description Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - desertcart.com ## Features - [Wide application]: This counter sink bit Suitable for workpieces with hardness less than 45HRC, such as carbon steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.(Not Great for Stainless SteelοΌ‰ - [Efficiency]: this wood metal drilling bit has a one-piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage. - [HSS 4231]: each metal countersunk drill bit is made from high quality HSS material, Chiloskit countersink drill bit set is excellent in heat, corrosion and rust resistance. - [Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds.including 6 most popular sizes: : 6.3mm(1/4''), 8.3mm(5/16''), 10.4mm(2/5''), 12.4mm(1/2''), 16.5mm(5/8''), 20.5mm(4/5'').Shank: round shank.Not recommended to use hand drills. - Great gift for man DIYer . Don't settle for less - choose our countersink drill bit set for a superior drilling experience.If you are not satisfied withthe functions or any other reasons, just return it to us and we’ll be happy to resolve any problems ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B015J33P2M | | Best Sellers Rank | #111,990 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #97 in Countersink Drill Bits | | Brand | Chiloskit | | Brand Name | Chiloskit | | Customer Reviews | 4.2 out of 5 stars 317 Reviews | | Cutting Angle String | 90 Degrees | | Cutting Diameter | 6.3 Millimeters | | Finish Type | Silver | | Finish Types | Silver | | Item Dimensions | 3.94 x 3.94 x 3.94 inches | | Item Weight | 0.1 Kilograms | | Manufacturer | Preamer | | Material | High Speed Steel (HSS) | | Material Type | High Speed Steel (HSS) | | Minimum Bore Diameter | 0.37 Inches | | Model | LK-154565 | | Number of Flutes | 3 | | Number of Pieces | 6 | | Part Number | 1 | | Point Style | Countersink | | Set Name | 6-Piece Set | | Shank Type | Round | | Surface Recommendation | Metal | | Tool Flute Type | 3 Flutes | | UPC | 745950874485 | | Unit Count | 6.0 Count | ## Product Details - **Cutting Angle String:** 90 Degrees - **Cutting Diameter:** 6.3 Millimeters - **Finish Type:** Silver - **Material:** High Speed Steel (HSS) - **Shank Type:** Round ## Images ![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 1](https://m.media-amazon.com/images/I/61Qhhef1ypL.jpg) ![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 2](https://m.media-amazon.com/images/I/71qtL+XryaL.jpg) ![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 3](https://m.media-amazon.com/images/I/71xcYiG92ML.jpg) ![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 4](https://m.media-amazon.com/images/I/61uZ6uLto+L.jpg) ![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 5](https://m.media-amazon.com/images/I/71N9CPHcOkL.jpg) ## Questions & Answers **Q: What are the shank diameters?** A: Dear friend Head Diameter *Shank Diameter * Length 6.3MM: 6.3MM*5MM*37MM 8.3MM: 8.3MM*6MM*40MM 10.4MM:10.4MM*6MM*39MM 12.4MM:12.4MM*10MM*46MM 16.5MM:16.5MM*10MM*47MM Any question ,just feel free to tell us Regards Preamer **Q: do these come only in metric or is imperial available as well?** A: metric **Q: How do these perform on stainless steel to deburr holes?** A: They work good in a2,d2, and stainless 304. I have several types, 60, 82, and 90 deg. I don't run a high rpm though. I use these in a hand drill motor and in my mill. Remember start slow, multi blade with light chip depth will give a good finish. They're though enough to champher an edge also, at least occasionally! **Q: What is the correct speed to avoid the chattering that leaves a very poor finish in the countersink?** A: Try running them at a higher speed and make sure EVERYTHING is as solidly locked down as possible. good luck ## Frequently Bought Together - Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - 7 Pieces Center Drill Bits Set, M2 High Speed Steel 60-Degree Angle Center Drill Bits Kit Countersink Tools for Lathe Metalworking Size 1.0 1.5 2.0 2.5 3.0 4.0 5.0 - Countersink Drill Bit Set, 5pc, 1/4" Hex Shank, 82 Degree Countersink Holes for Screws to Sit Flush or Under The Surface of Metal Wood Plastic, Sizes 1/4, 3/8, 1/2, 5/8, 3/4 Inches with Storage Case --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/29374403-countersink-drill-bit-set-for-steel-3-flute-90-degree](https://www.desertcart.tn/products/29374403-countersink-drill-bit-set-for-steel-3-flute-90-degree) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-25*