Corner Rounder Die Blades R3–R13 | Replacement Cutter 2-Pack
Sharp, Precise Corner Rounding Blades for Every Project
Upgrade your corner rounder cutter machine with these high-speed steel die blades. Available in seven radius sizes — R3, R4, R6, R7, R8, R10, and R13 — these replacement blades deliver clean, perfectly rounded corners on a wide range of materials. Whether you're finishing business cards, photo mats, brochures, or craft boards, these blades keep your machine performing at its best.
Key Features
- High-Speed Steel Construction: Hard alloy blade with a razor-sharp edge for fast, consistent cutting performance.
- Seven Radius Options: Choose from R3, R4, R6, R7, R8, R10, or R13 to match your existing corner rounder machine requirements.
- Wide Material Compatibility: Cuts foam core, PVC boards, ABS plastic, paper cards, mats, brochures, magnet boards, aluminum boards, and more.
- Easy Replacement: Designed as a drop-in replacement for manual corner cutting and rounding machines — minimal downtime, maximum output.
- 2-Piece Set: Each pack includes 2 die blades so you always have a spare on hand.
Specifications
| Material | High-Speed Steel |
| Available Models | R3, R4, R6, R7, R8, R10, R13 |
| Quantity per Set | 2 Blades |
| Compatible With | Manual Corner Rounder / Corner Cutter Machines |
| Country of Origin | Made in China |
What's in the Box
- 2 × Corner Rounder Die Blades (your chosen radius size)
Note: Please allow 1–3 cm variance due to manual measurement. Actual color may vary slightly from images due to display settings.
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Frequently Asked Questions
Q: Which corner rounder machines are these die blades compatible with?
A: These replacement die blades are designed for manual corner rounder cutter machines that accept standard die blade sizes R3, R4, R6, R7, R8, R10, or R13. Please check your machine's specifications to confirm the correct radius size before ordering.
Q: What materials can these corner rounder blades cut?
A: The high-speed steel blades are suitable for cutting foam core, PVC boards, ABS plastic sheets, paper cards, photo mats, brochures, magnet boards, and thin aluminum boards — making them ideal for craft, print finishing, and DIY projects.
Q: How many blades are included in each set?
A: Each set includes 2 die blades of your selected radius size, so you have an immediate spare ready to go when needed.
Q: How do I choose the right radius size?
A: The radius number (R3 through R13) refers to the corner curve radius in millimeters. A smaller number (e.g. R3) produces a tighter, subtler rounded corner, while a larger number (e.g. R13) creates a more pronounced curve. Match the size to your current machine die slot and your desired aesthetic finish.