--- product_id: 406968828 title: "SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking" brand: "spetool" price: "$64.53" currency: USD in_stock: true reviews_count: 5 category: "Spe Tool" url: https://www.desertcart.us/products/406968828-spetool-tapered-spiral-end-mill-ball-nose-0-5mm-radius store_origin: US region: United States of America --- # TiAlN coating for heat resistance 1/4'' solid tungsten carbide shank 2-Flute precision cutting SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking **Brand:** spetool **Price:** $64.53 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your CNC game with precision that demands attention! ## Quick Answers - **What is this?** SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking by spetool - **How much does it cost?** $64.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/406968828-spetool-tapered-spiral-end-mill-ball-nose-0-5mm-radius) ## Best For - spetool enthusiasts ## Why This Product - Trusted spetool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Durability:** Solid tungsten carbide with TiAlN coating extends tool life - • **Time-Saving Efficiency:** Long flute length and sharp edges reduce tool changes and downtime - • **Stable & Smooth Operation:** Tapered design ensures rigidity and clean, chatter-free cuts - • **Pinpoint Precision Carving:** 0.5mm ball radius for ultra-fine detail work - • **Versatile Material Compatibility:** Cuts stainless steel, alloy, hardwood & more with ease ## Overview The SpeTool Tapered Spiral End Mill features a 0.5mm ball nose radius and a robust 1/4'' solid tungsten carbide shank, enhanced with a TiAlN coating for superior heat resistance and durability. Designed for 2D and 3D engraving on a wide range of materials including stainless steel, alloy steels, and hardwood, its 2-flute tapered design delivers stable, precise cuts with minimal tool wear—perfect for professionals seeking flawless detail and efficiency in CNC routing and carving. ## Description Shank Diameter: 1/4inchMaterial: Solid Tungsten CarbideCoating: TiAINOverall Length: 3inchWorked Material Hardness: HRC55Flutes: 2 FlutesFlutes length: 1-1/4inchRadius: 0.5mmSingle Side Angel: 4.82DegSuitable Materials: stainless-steel, cast iron, Cu, Al, hard woodPackage Include: 1 Pc End Mill Review: I picked up the SpeTool Tapered Ball Nose Spiral Router Bit (1.0mm tip / 0.5mm radius) for detailed carving work, and it performed beautifully. Cut Quality & Precision: This bit is excellent for fine detail work. The small tip allows for very clean, controlled cuts, making it ideal for intricate designs. I used it to carve a detailed log cabin into wood, and the results were crisp with smooth transitions and minimal fuzzing. Control & Stability: The tapered design really helps with rigidity. Even at small diameters, the bit feels stable and predictable, which makes it much easier to work confidently on delicate features like grooves, corners, and texture lines. Finish & Durability: Edges stay sharp and leave a surprisingly clean finish for such a small bit. I didn’t notice any burning or chatter when using appropriate speeds and light passes. Value: For the price, the quality is excellent. It performs like a much more expensive precision carving bit and holds up well under careful use. Bottom Line: If you do CNC work or detailed hand-guided carving and need a reliable bit for fine detail, this one is a great choice. Perfect for architectural details, textures, and small-scale relief carving. Highly recommended. Review: Broke my original. 1/4” drive and worked liked a champ. Clean cuts and does what I need it to. Price wasn’t to bad for the item. ## Features - Tapered angle Ball Nose End Mill / Cone Cutters - 1/4 inch Shank Diameter, 2 Flutes, TiAIN Coated - Ball Raidus: 0.5mm, Flute Length: 1-1/4", Overall Length: 3", Single Side Angel: 4.82Deg - For CNC,Engraving machine.Carbon steel,mould steel,alloy steel,inconel,stainless steel,titanium alloy etc - Suitable Material: 55HRC, Long service life, Decreasing the times of changing cutters,Saving production time ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0778F6KP8 | | Brand Name | SpeTool | | Customer Reviews | 4.7 out of 5 stars 240 Reviews | | Cut Type | Ball End | | Cutting Diameter | 1 Millimeters | | Cutting diameter | 1 Millimeters | | End Cut Type | Ball End | | End cut type | Ball End | | Finish Types | TiAlN | | Finish type | TiAlN | | Helix Angle | 3E+1 Degrees | | Manufacturer | SpeTool | | Material | Tungsten Steel | | Material Type | Tungsten Steel | | Number of Cutting Edges | 2 | | Number of Flutes | 2 | | Number of flutes | 2 | | Shape | Taper | | Size | D=1.0MM | | Size Name | D=1.0MM | | Tolerance Held | Precision | | Unit Count | 1.0 Count | ## Product Details - **Cutting diameter:** 1 Millimeters - **Finish type:** TiAlN - **Material:** Tungsten Steel - **Number of flutes:** 2 - **Size:** D=1.0MM ## Images ![SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking - Image 1](https://m.media-amazon.com/images/I/41kF3pHGh8L.jpg) ![SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking - Image 2](https://m.media-amazon.com/images/I/51410bRS12L.jpg) ![SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking - Image 3](https://m.media-amazon.com/images/I/611DeVv7QCL.jpg) ![SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking - Image 4](https://m.media-amazon.com/images/I/712Ag+e-BuL.jpg) ![SpeTool Tapered Spiral End Mill Ball Nose 0.5mm Radius 1/4'' Shank CNC Router Bits Solid Tungsten Carbide 2-Flute TiAlN Coated Milling Cutter for 2D and 3D Engraving Carving Woodworking - Image 5](https://m.media-amazon.com/images/I/71f13J6F-WL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Questions & Answers **Q: what are the preferred rpm, feed rate, plunge rate so that i can configure my CAM software?** A: I use trial and error on tapered BN bits as the geometry varies from the tip as you move up the bit. For 3d carving I will run a roughing pass first, then change to the TBN and start at about 2 IPS for both feed and plunge and move towards 3.5. I will start my rpms at 12k and go up or down. Whatever tip size, I generally use 10% stepover. As I run test passes on the wood type I am using I listen for any stress or chatter. As I finish the run and the bit stops spinning, I verify that it is not hot to the touch and finally view the test carve for results. Again, this is my process for any size TBN. **Q: Is there a SpeTool database?** A: Yes, there is just go to SpeTool website and you can download the database for Fusion 360, Vectric, and others there. **Q: How many inches per minute do you run with this mill? my no load rpm available are 8,000-24,000 rpm. any suggestions appreciated** A: I do 18000rpm in my cnc and find it leaves a nice cut on hard woods **Q: What are the general speeds, spm, and depth for this bit for oak carving, for fine detail ? I am just starting out. Thanks for any info. jc** A: I can't give any suggestions because I don't know what machine you have, spindle or router, horsepower nor it's rigidity. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***E on 15 December 2025* I picked up the SpeTool Tapered Ball Nose Spiral Router Bit (1.0mm tip / 0.5mm radius) for detailed carving work, and it performed beautifully. Cut Quality & Precision: This bit is excellent for fine detail work. The small tip allows for very clean, controlled cuts, making it ideal for intricate designs. I used it to carve a detailed log cabin into wood, and the results were crisp with smooth transitions and minimal fuzzing. Control & Stability: The tapered design really helps with rigidity. Even at small diameters, the bit feels stable and predictable, which makes it much easier to work confidently on delicate features like grooves, corners, and texture lines. Finish & Durability: Edges stay sharp and leave a surprisingly clean finish for such a small bit. I didn’t notice any burning or chatter when using appropriate speeds and light passes. Value: For the price, the quality is excellent. It performs like a much more expensive precision carving bit and holds up well under careful use. Bottom Line: If you do CNC work or detailed hand-guided carving and need a reliable bit for fine detail, this one is a great choice. Perfect for architectural details, textures, and small-scale relief carving. Highly recommended. ### ⭐⭐⭐⭐⭐ Review *by J***R on 3 August 2025* Broke my original. 1/4” drive and worked liked a champ. Clean cuts and does what I need it to. Price wasn’t to bad for the item. ### ⭐⭐⭐⭐⭐ Review *by B***. on 31 August 2019* I have been ordering this same size bit from another seller here on Amazon, and the difference is night and day. The bits from the other seller here lately are delivered already dull and I suspect those are used bits. The reason I state this is because there is absolutely no way those bits can be new, especially when compared to way the SpeTool bit cuts, I am currently using my CNC machine carving my 4th piece with the SpeTool Tapered Ball Nose End Mill and it is still super sharp. The other sellers bits are cutting for me like the ones I replace when they are dull, all kinds of wood "fuzzies" ay the edges of cuts. With this bit for SpeTool I am not getting any of those "fuzzies" even on my 4th carve, so I highly recommend this bit. ## Frequently Bought Together - SpeTool Tapered Ball Nose Spiral Router Bit 1.0mm Tip Diameter (0.5mm Radius) 4.82 Deg for CNC Milling Engraver Carving Bits - SpeTool Tapered Ball Nose End Mill 1/4" X 3" with 0.5mm Tip Diameter(0.25mm Radius) Ball Nose 5.26Deg for CNC Machine Engraving Carving Bits H-Si Coated - SpeTool 1/8 Inch Spiral Downcut Router Bit 1/4 Inch Shank Extra Long 3 Inch with Extra Long Life Coating CNC Carbide Router Wood Bits --- ## 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.us/products/406968828-spetool-tapered-spiral-end-mill-ball-nose-0-5mm-radius](https://www.desertcart.us/products/406968828-spetool-tapered-spiral-end-mill-ball-nose-0-5mm-radius) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-12*