--- product_id: 547752516 title: "IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine" brand: "ironwalls" price: "$2.68" currency: USD in_stock: true url: https://www.desertcart.us/products/547752516-ironwalls-r4mm-replacement-blades-for-corner-rounder-machine-5-32 store_origin: US region: United States of America --- # High-speed steel durability 4mm precision radius 3-piece die blade set IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine **Brand:** ironwalls **Price:** $2.68 **Availability:** ✅ In Stock ## Summary > ✂️ Cut corners, not quality — sharpen your edge with IRONWALLS! ## Quick Answers - **What is this?** IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine by ironwalls - **How much does it cost?** $2.68 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/547752516-ironwalls-r4mm-replacement-blades-for-corner-rounder-machine-5-32) ## Best For - ironwalls enthusiasts ## Why This Product - Trusted ironwalls brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Crafted from high-speed steel for superior toughness, rust resistance, and long-lasting sharpness. - • **Precision Perfected:** Achieve flawless 4mm rounded corners every time with exacting accuracy. - • **Universal Compatibility:** Fits most manual metal corner rounder punch cutters—upgrade without hassle. - • **Versatile Cutting Power:** Effortlessly rounds corners on paper, foam cores, PVC, ABS plastics, aluminum, and more. - • **Complete Replacement Kit:** Includes 2 upper blades and 1 bottom blade plus installation accessories for seamless setup. ## Overview The IRONWALLS R4mm Replacement Blades set features a 4mm radius die blade design with 2 upper and 1 bottom blade made from high-speed steel. Engineered for durability and precision, this universal kit fits most manual metal corner rounder machines and handles a variety of materials including paper, plastics, and metal sheets for professional-grade corner rounding. ## Description Specification: Material: high speed steel Model: R4 Packing included: 1 * Upper Die Blade 1 * Lower Die Blade Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. ## Features - 【Complete Round Corner Die Blade Set】IRONWALLS R4mm replaceable die punch set includes 2pcs upper blade, 1pc bottom blade and installation accessories, which are perfectly matched. - 【Universal Corner Rounder Cutter Blade】IRONWALLS paper cutting die is suitable for most of manual metal corner rounder punch cutter, easy to install. - 【High Hardness Steel Material】This die blade replacement part set is made by high quality high speed steel, tough, durable, rust and corrosion resistant, which can provide you fast, accurate and sharp punching performance. - 【Wide Application】It can cut foam cores, PVC and ABS plastic boards, paper cards, mats, brochures, aluminum boards, etc. ## Product Details - **Material:** Alloy Steel - **Brand:** IRONWALLS - **Item weight:** 0.09 Kilograms - **Hole count:** 1 - **Operation mode:** Manual ## Images ![IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - Image 1](https://m.media-amazon.com/images/I/71DN61kGXfL.jpg) ![IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - Image 2](https://m.media-amazon.com/images/I/81zMDYVcq0L.jpg) ![IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - Image 3](https://m.media-amazon.com/images/I/61tpgYDEDiL.jpg) ![IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - Image 4](https://m.media-amazon.com/images/I/713JfSlvHjL.jpg) ![IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - Image 5](https://m.media-amazon.com/images/I/71aWIjYpvLL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - IRONWALLS R4mm Replacement Blades for Corner Rounder Machine, 5/32” 4mm Radius Die Blade Set with 2pcs Upper Blade & 1pc Bottom Blade for Metal Sheet Paper Corner Rounder Cutter Machine - IRONWALLS Corner Rounder Cutter Machine, R6mm R10mm 1.2”/ 30mm Thickness Heavy Duty Paper Corner Cutter Punch with Paper Holding Device, Steel Metal Commercial Corner Punch for Office Business - N+A 14F0 Three-in-one Fillet, Acrylic --- ## 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/547752516-ironwalls-r4mm-replacement-blades-for-corner-rounder-machine-5-32](https://www.desertcart.us/products/547752516-ironwalls-r4mm-replacement-blades-for-corner-rounder-machine-5-32) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-07*