Description
Rectangular indexable insert knives are similar to our square inserts, differing mainly in shape. They are specifically designed for use in grooving cutterheads, CNC tooling systems, router bits and certain planers or jointers. These inserts are ideal for trimming, profiling, and smoothing wood surfaces, offering precision and a clean finish in woodworking operations.
Sundi specializes in rectangular indexable insert knives crafted from high-quality carbide, engineered for efficient wood cutting. Our inserts deliver clean, smooth finishes on hardwood, softwood, MDF, and plywood—reducing tear-out and minimizing sanding time. With deep experience in woodworking applications, we provide tooling that helps customers improve surface quality, extend tool life, and reduce downtime. From stable supply to technical support, we ensure your production runs with precision and consistency.
Compatible Tools:
Grooving cutterheads
Planer cutterheads
Jointer cutterheads
CNC router bits
Moulding heads
Profiling tools
Rebating cutters
Surface planers and thicknessers
Grade
| Grade | Grain Size（μm） | Density（g/cm³） | Hardness（HRA) | Binder % | TRS(≥Mpa） |
|---|---|---|---|---|---|
| SD07 | 0.6-0.8 | 14.7-14.9 | 92.5-93.5 | 5.7-6.2 | ≥2400 |
| SD08 | 0.6-0.8 | 14.8-15.05 | 93.2-94 | 3.8-5.2 | ≥2800 |
| SD18 | 0.6-0.8 | 15.05-15.25 | 93.9-94.7 | 1.6-2.7 | ≥2600 |
| SD28 | 0.4-0.6 | 15.5-15.5 | 95.0-95.5 | 1.3-1.6 | ≥2500 |
| SD30 | 0.6-0.8 | 14.3-14.5 | 91.4-92.2 | 10-10.5 | ≥2700 |
Customization & OEM:
Sundi offers flexible customization and OEM services, including non-standard sizes, edge designs, coatings, and branded packaging. We work closely with machinery makers and distributors to deliver insert knives tailored to their specific needs.
Specification
Our Rectangular indexable insert knives are available in a variety of sizes and shapes, including Two-sided single hole, Two-sided two holes, Four-sided single hole, Four-sided two holes,Four-sided Three holes designs. Below are some commonly used dimensions for reference. If you require other specifications or custom shapes, please feel free to contact us.
| Length(mm) | Width(mm) | Thickness(mm) | BEVEL (a°) |
|---|---|---|---|
| 7.50 | 12.00 | 1.50 | 35° |
| 8.00 | 12.00 | 1.50 | 35° |
| 9.60 | 12.00 | 1.50 | 35°/45° |
| 10.50 | 12.00 | 1.50 | 35° |
| 11.00 | 12.00 | 1.50 | 35° |
| 13.00 | 12.00 | 1.50 | 35° |
| 15.00 | 12.00 | 1.50 | 35° |
| 18.00 | 12.00 | 1.50 | 35° |
| 19.50 | 12.00 | 1.50 | 35° |
| 20.00 | 12.00 | 1.50 | 35°/40°/45° |
| 24.00 | 12.00 | 1.50 | 35°/40°/45° |
| 25.00 | 12.00 | 1.50 | 35°/45° |
| 28.00 | 12.00 | 1.50 | 35° |
| Length(mm) | Width(mm) | Thickness(mm) | C(mm) | a° | β° |
|---|---|---|---|---|---|
| 25.00 | 12.00 | 1.50 | 14.00 | 30° | 35° |
| 29.50 | 9.00 | 1.50 | 14.00 | 35° | 20° |
| 29.50 | 12.00 | 1.50 | 14.00 | 35° | 20° |
| 30.00 | 9.00 | 1.50 | 14.00 | 35° | 20°/35° |
| 30.00 | 12.00 | 1.50 | 14.00 | 35° | 35° |
| 39.50 | 12.00 | 1.50 | 26.00 | 35° | 20°/35° |
| 40.00 | 9.00 | 1.50 | 26.00 | 35° | 20° |
| 40.00 | 12.00 | 1.50 | 26.00 | 35° | 20°/35° |
| 49.50 | 9.00 | 1.50 | 26.00 | 35° | 20°/35° |
| 49.50 | 12.00 | 1.50 | 26.00 | 35° | 20°/35° |
| 50.00 | 9.00 | 1.50 | 26.00 | 35° | 20° |
| 50.00 | 12.00 | 1.50 | 26.00 | 35° | 20°/35° |
| 60.00 | 12.00 | 1.50 | 26.00 | 35° | 20° |
| Length(mm) | Width(mm) | Thickness(mm) | C(mm) | BEVEL (a°) |
|---|---|---|---|---|
| 24.00 | 12.00 | 1.50 | 14.00 | 35° |
| 25.00 | 12.00 | 1.50 | 14.00 | 35°/45° |
| 28.00 | 12.00 | 1.50 | 14.00 | 45° |
| 29.00 | 12.00 | 1.50 | 14.00 | 35° |
| 30.00 | 12.00 | 1.50 | 14.00 | 30°/35°/45° |
| 30.00 | 12.00 | 2.50 | 14.00 | 35° |
| 40.00 | 12.00 | 1.50 | 26.00 | 35° |
| 48.00 | 12.00 | 1.50 | 26.00 | 45° |
| 50.00 | 12.00 | 1.20 | 26.00 | 45° |
| 50.00 | 12.00 | 1.50 | 26.00 | 35°/45° |
| 60.00 | 12.00 | 1.50 | 26.00 | 35°/45° |
| Length(mm) | Width(mm) | Thickness(mm) | C(mm) | a° | β° |
|---|---|---|---|---|---|
| 28.30 | 12.00 | 1.50 | 14.00 | 35° | 30° |
| 30.00 | 9.00 | 1.50 | 14.00 | 35° | 20° |
| 30.00 | 12.00 | 1.50 | 14.00 | 35° | 20° |
| 40.00 | 12.00 | 1.50 | 26.00 | 35° | 20° |
| 48.30 | 12.00 | 1.50 | 26.00 | 35° | 30° |
| 50.00 | 9.00 | 1.50 | 26.00 | 35° | 20° |
| 50.00 | 12.00 | 1.50 | 26.00 | 35° | 20° |
