--- product_id: 442949169 title: "12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4\" Shank 1-1/4\" Cut Dia. CNC Router Bit" brand: "binstak" price: "HK$989" currency: HKD in_stock: true reviews_count: 2 category: "Binstak" url: https://www.desertcart.hk/products/442949169-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm-widthx2 store_origin: HK region: Hong Kong --- # 93 HRA ultra-hard tungsten carbide 12mm x 12mm x 2.2mm precision size 4 razor-sharp cutting edges 12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit **Brand:** binstak **Price:** HK$989 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade Your Workshop with Precision & Power! ## Quick Answers - **What is this?** 12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit by binstak - **How much does it cost?** HK$989 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/442949169-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm-widthx2) ## Best For - binstak enthusiasts ## Why This Product - Trusted binstak brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cost-Effective & Easy Maintenance:** Countersink hole design for quick mounting; replace or rotate edges to extend tool life and save money. - • **Precision Engineered for Flawless Cuts:** Exact 12x12x2.2mm dimensions ensure consistent, professional results every time. - • **Quad-Edge Design for Maximum Efficiency:** Four cutting edges mean less downtime—flip and keep going with zero interruptions. - • **Versatile Compatibility & Smooth Finish:** Perfect fit for BINSTAK 1/4" shank CNC router bits, ideal for hardwoods, MDF, acrylic, and more. - • **Unmatched Durability with 93 HRA Hardness:** Solid tungsten carbide construction delivers long-lasting sharpness and strength. ## Overview These 12mm square carbide inserts feature a 35° cutting angle and 4 sharp edges made from ultra-hard 93 HRA tungsten carbide. Designed for BINSTAK 1/4" shank CNC router bits, they deliver smooth, professional finishes on a variety of materials including hardwood, MDF, and acrylic. The countersink hole allows easy mounting, while the reversible edges maximize tool life and efficiency—perfect for the modern craftsman seeking durability and precision. ## Description BINSTAK Carbide Inserts Cutters Knives Replacement Blades Square Straight Insert Countersink Hole12 x 12 x 2.2 mm Woodworking Spiral Helical Planer Head 10 Pc's ✔Their solid carbide micro grain tips give superior tool life in a wide variety of materials for all general spiral planer head in hard woods and soft woods, the insert can be used for the heads of your jointer and planer. ✔35°cutting bevel, polished to a mirror finish for smoother cutting work. ✔Replacement carbide tips for CNC router fits BINSTAK 1/4-Inch Shank Insert Surfacing Router Bit 2-Wing 1-1/4 Cutting Diameter (ASIN: B0B1MCWLG3) ✔COST-EFFECTIVE. Rotate or replace the two or three small knives that were affected, and you are ready to get back to work. Leaves smooth finishing after cut. Specification: Material: Solid Tungsten Carbide Rockwell Hardness: 93.0HRA Shape: Square Straight 4-edges Hole: Countersink hole Length - 12mm Width - 12mm Thickness - 2.2mm Bevel - 35 degree Applications: woodturning, woodworking Quantity: 10pcs/box Package Includes: 10 * Carbide Insert 1 * Plastic Box Review: Perfect Fit!! Outstanding results! - like very much Review: these work - I used them on my cutter bit cuts nice ## Features - 12mm*12mm*2.2mm (length*width*thick), 35°angle, Hardness: 93HRA, 4 cutting edges. Countersink mounting hole. - Made of solid tungsten carbide, high strength and hardness, own longer use life, sharp and durable. - Each blade has 4 sharp edges, if one is dull, just change it to the other side. More effective! - Ideal for giving you a smooth finish on curved, concave surfaces, hollowing jobs and for general turning applications. Used on soft and hard woods, particle board, MDF, plywood compact panel, laminate, acrylic and etc. - Fits for Spiral/Helical Planer Cutter Heads, Rougher Wood Turning Tools. Replacement carbide tips for CNC router fits NITOMAK and BINSTAK Insert Surfacing Router Bit 3-Wing. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | BINSTAK | | Part number | K1222 | | Item Weight | 41 g | | Package Dimensions | 9.19 x 8 x 2.69 cm; 41 g | | Item model number | K1222 | | Size | Replacement Inserts-Countersink Hole-12*12*2.2 | | Included components | No | | Batteries Included? | No | | Batteries Required? | No | ## Images ![12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 1](https://m.media-amazon.com/images/I/61Hnv0-IjrL.jpg) ![12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 2](https://m.media-amazon.com/images/I/51x+3AM4CLL.jpg) ![12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 3](https://m.media-amazon.com/images/I/51BIcEwjodL.jpg) ![12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 4](https://m.media-amazon.com/images/I/61L56VEPK2L.jpg) ![12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), Pack of 10, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 5](https://m.media-amazon.com/images/I/61YmXZ80h6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect Fit!! Outstanding results! *by D***E on 21 February 2024* like very much ### ⭐⭐⭐⭐⭐ these work *by J***M on 15 July 2024* I used them on my cutter bit cuts nice ## Frequently Bought Together - BINSTAK - K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - BINSTAK CNC Spoilboard Surfacing Router Bit 1/4" Shank, Slab Flattening Router Bit with 1-3/8" Cutting Diameter, 2+2 Flutes Insert Carbide Wood Planer Router Bits, Planing Bit for Woodworking - Wolfride 1/2-Inch Shank Router Bit Collet Extension, Adapter for 1/2-inch Shank 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.hk/products/442949169-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm-widthx2](https://www.desertcart.hk/products/442949169-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm-widthx2) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-25*