20pcs 15mm Square Carbide Inserts 15x15x2.5-30° R100 Lathe
20pcs 15mm Square Carbide Inserts 15x15x2.5-30° R100 Lathe
20-Pack Square Carbide Inserts for Wood Lathe Turning — 15x15x2.5mm, 30°, R100 Compatible
Upgrade your wood turning game with these professional-grade 15mm square carbide inserts. Made from solid cemented carbide (hard alloy), this value pack of 20 inserts is engineered for full-size and professional roughing machines, and serves as a direct Ci1-R4 replacement cutter head. Whether you're a seasoned woodturner or a dedicated DIY enthusiast, these inserts deliver consistent, long-lasting cutting performance on the lathe.
Made in Mainland China.
Key Features
- Premium Cemented Carbide Material: Solid hard alloy construction ensures exceptional hardness, wear resistance, and durability through extended turning sessions.
- 4 Indexable Cutting Edges: Each insert features four usable cutting edges — simply rotate to a fresh edge when one dulls, maximising the value of every insert.
- Precise Specifications: 15x15x2.5mm dimensions with a 30° cutting angle, optimised for R100 radius tools for smooth, controlled material removal.
- Ci1-R4 Compatible: Direct replacement for Ci1-R4 roughing cutter heads on full-size and professional-grade wood lathes.
- Great Value 20-Pack: Receive 20 inserts in total, so you always have a sharp edge ready and can keep your workflow uninterrupted.
- Easy Replacement: Quick-swap design minimises downtime — no re-grinding or special sharpening equipment required.
Specifications
| Material | Cemented Carbide (Hard Alloy) |
| Size | 15 x 15 x 2.5 mm |
| Cutting Angle | 30° |
| Radius | R100 |
| Compatibility | Ci1-R4 Replacement Cutter / R100 Turning Tools |
| Cutting Edges | 4 Indexable Edges Per Insert |
| Quantity | 20 Inserts |
| Color | As pictured |
| Origin | Mainland China |
Package Contents
- 20 × 15mm Square Carbide Inserts (15x15x2.5-30° for R100)
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Note: Actual color may vary slightly from product images due to monitor brightness and lighting conditions. Please allow a minor measurement tolerance of ±0.1mm.
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Frequently Asked Questions
Q: Are these carbide inserts compatible with all wood lathes?
A: These 15mm square carbide inserts (15x15x2.5-30°) are specifically designed as Ci1-R4 replacement cutter heads and are compatible with R100 turning tools on full-size and professional-grade roughing wood lathes. Please verify your lathe's tool holder specifications before purchasing.
Q: How many cutting edges does each insert have?
A: Each insert features 4 indexable cutting edges. When one edge becomes dull, simply loosen the screw, rotate the insert to the next sharp edge, and re-tighten — no sharpening tools needed, saving you time and money.
Q: What is the advantage of cemented carbide over standard steel inserts?
A: Cemented carbide (hard alloy) is significantly harder and more wear-resistant than standard high-speed steel. This means the cutting edges stay sharp longer during wood turning, produce cleaner cuts, and reduce the frequency of insert replacement — making them ideal for both DIY hobbyists and professional woodturners.
Q: How many inserts are included in this pack?
A: This listing includes 20 square carbide inserts, giving you a plentiful supply to keep on hand so your wood lathe turning projects are never interrupted by a dull cutter.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.