--- product_id: 29374403 title: "90 Degree HSS Chamfering Tool Bit" brand: "chiloskit" price: "฿1688" currency: THB in_stock: null reviews_count: 9 category: "Chiloskit" url: https://www.desertcart.co.th/products/29374403-90-degree-hss-chamfering-tool-bit store_origin: TH region: Thailand --- # 6 precision sizes from 6.3mm to 20.5mm HSS 4231 steel for heat & corrosion resistance 3-flute design for smooth chip removal 90 Degree HSS Chamfering Tool Bit **Brand:** chiloskit **Price:** ฿1688 **Availability:** ❌ Out of Stock ## Summary > 🔧 Elevate your DIY game with precision and power! ## Quick Answers - **What is this?** 90 Degree HSS Chamfering Tool Bit by chiloskit - **How much does it cost?** ฿1688 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/29374403-90-degree-hss-chamfering-tool-bit) ## 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 - • **Complete Size Range:** Includes 6 popular sizes to tackle all your metalworking and woodworking projects with ease. - • **Durable High-Speed Steel:** Crafted from premium HSS 4231 for superior heat and rust resistance during heavy use. - • **Optimized Chip Evacuation:** 3-flute design prevents clogging, boosting your workflow efficiency. - • **Effortless Precision Chamfering:** 90° countersink angle ensures clean, professional bevels every time. - • **Versatile Material Compatibility:** Perfect for carbon steel, aluminum, wood, PVC, and more (under 45HRC hardness). ## Overview This 6-piece Countersink Drill Bit Set features 3-flute, 90° HSS 4231 bits designed for efficient chamfering on metals and wood. With sizes ranging from 6.3mm to 20.5mm, it offers versatile application on materials under 45HRC hardness. Engineered for smooth chip removal and durability, it’s ideal for professional and DIY use, ensuring clean, precise countersinks every time. ## 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 Review: Works with 1/2" Floor Standing Drill Press - I'm an old fashion machinist, and learned long ago to drill-counter sink at low speed-300 to 500RPM, when countersinking metal. The harder the material, the lower the speed, to avoid "chattering" of the bit. Soft stuff like wood or plastic can tolerate much higher speed. Trying to countersink metal with a power hand drill, requires a very strong handed He-man. Review: Product does the job for which it is designed - Good product and good "bang for the buck." More expensive items may be more durable for someone who uses them often, but for the DYI home shop, these do a good job. ## 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 Steel） - [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 | #112,027 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #104 in Countersink Drill Bits | | Brand Name | Chiloskit | | Customer Reviews | 4.2 4.2 out of 5 stars (311) | | Cutting Angle String | 90 Degrees | | Cutting Diameter | 6.3 Millimeters | | Finish Types | Silver | | Item Dimensions | 3.94 x 3.94 x 3.94 inches | | Item Weight | 0.1 Kilograms | | Manufacturer | Preamer | | Material Type | High Speed Steel (HSS) | | Minimum Bore Diameter | 0.37 Inches | | Model | LK-154565 | | Number of Flutes | 3 | | Point Style | Countersink | | 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 ![90 Degree HSS Chamfering Tool Bit - Image 1](https://m.media-amazon.com/images/I/61Qhhef1ypL.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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with 1/2" Floor Standing Drill Press *by P***I on June 10, 2025* I'm an old fashion machinist, and learned long ago to drill-counter sink at low speed-300 to 500RPM, when countersinking metal. The harder the material, the lower the speed, to avoid "chattering" of the bit. Soft stuff like wood or plastic can tolerate much higher speed. Trying to countersink metal with a power hand drill, requires a very strong handed He-man. ### ⭐⭐⭐⭐⭐ Product does the job for which it is designed *by D***E on April 30, 2024* Good product and good "bang for the buck." More expensive items may be more durable for someone who uses them often, but for the DYI home shop, these do a good job. ### ⭐⭐⭐ Not durable *by S***P on March 26, 2024* I used it once on metal L bars and it worked good for the first 5 holes but after that, it smoked and got dull. If you need something for professional use, this is not it. ## 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? - 🛒 **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.th/products/29374403-90-degree-hss-chamfering-tool-bit](https://www.desertcart.co.th/products/29374403-90-degree-hss-chamfering-tool-bit) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*