Description
Similar to square carbide insert knives, rectangular carbide insert knives are important cutting tools used in woodworking and other machining applications. As the name suggests, rectangular inserts are rectangular pieces of tungsten carbide material, instead of square. They are designed to be mounted on cutting tools like planers, jointers, moulders, and routers to trim, shape, and smooth wood surfaces.
Konetool rectangular reversible knives earn thousands of customers’ trust by high and consistent quality due to the rigorous production and inspection process. The rectangular carbide insert knives are made from micron-sized grain raw material, and the solid carbide creates the sharpest and most durable edges. The whole 27 manufacturing processes are finished by CNC machines to ensure high geometrical precision. The sharp corners without radius of our reversible insert knives are the best choice for turning straight profiles and nearly 90-degree inside corners. They perform long-lasting, smooth cutting in the densest hardwoods.
Our rectangular carbide insert knives are specifically provided for precision tool manufacturers, furniture factory owners, tool traders/distributors/wholesalers, or woodworking workshop owners who are looking for top-quality rectangular insert knives.
Grade:
| Konetool Grade | Grain Size | Density (g/cm³) | Hardness (HRa) | T.R.S (N/m㎡) |
| GF21 | Fine | 14.85-15.05 | 91 | 2000 |
| TF21 | Sub-Micron | 14.96 | 92.8 | 2250 |
| TF25 | Sub-Micron | 14.52 | 91.8 | 2950 |
Tooling System:
- Planer & Jointer Cutterblocks
- Groove Cutterheads
- CNC Router Bits
- Rebating Cutterheads
- Moulder Cutterheads
Advantage:
- Wear-resistant: resisting mechanical wear
- Corrosion-resistant: preventing chemical influences
- Oxidation-resistance: preventing thermal influences
- Durability: long use life
- Tolerance: less than 2 decimillimeters
Customization & OEM:
In addition, related products such as cutterheads and screws are also available. If you need customization or OEM services, we are flattered to offer tailor-made solutions to you.
Specification:
Our rectangular carbide insert knives are available in various types, including two-sided single hole, two-sided two holes, four-sided single hole, and four-sided two holes, making them versatile for a range of cutting applications.
The following are a few sizes of our rectangular carbide insert knives. Contact us or request a quote for additional sizes not listed in this section.
| Length(mm) | Width(mm) | Thickness(mm) | BEVEL |
| 7.5 | 12 | 1.5 | 35° |
| 9.6 | 12 | 1.5 | 35° |
| 10.5 | 12 | 1.5 | 35° |
| 11 | 12 | 1.5 | 35° |
| 13 | 12 | 1.5 | 35° |
| 15 | 12 | 1.5 | 35° |
| 15.7 | 12 | 1.5 | 35° |
| 17 | 12 | 1.5 | 35° |
| 18 | 12 | 1.5 | 35° |
| 19 | 12 | 1.5 | 35° |
| 20 | 12 | 1.5 | 35° |
| 19.5 | 12 | 1.5 | 35° |
| 20 | 12 | 1.5 | 35° |
| 24.7 | 12 | 1.5 | 35° |
| 25 | 12 | 1.5 | 35° |
| 29 | 12 | 1.5 | 35° |
| 29.5 | 12 | 1.5 | 35° |
| 30 | 12 | 1.5 | 35° |
| 30 | 12 | 2.5 | 35° |
| 40 | 12 | 1.5 | 35° |
| 49.5 | 12 | 1.5 | 35° |
| 50 | 12 | 1.5 | 35° |
| 59.5 | 12 | 1.5 | 35° |
| 60 | 12 | 1.5 | 35° |

FAQ:
- How can I make the payment?
We accept various payment methods, including T/T (bank transfer), PayPal, Western Union, and L/C (Letter of Credit) for larger orders. Payment terms are typically 30% deposit in advance and 70% balance before shipment. - What are the shipping options and delivery times?
We support FOB, CIF, and DDP shipping terms depending on your preference. we usually ship via express courier like DHL, FedEx, or UPS. Lead time for bulk orders is generally 15–35 days, depending on quantity and customization requirements. - How do you ensure product quality?
We have a strict quality control system in place. All products are inspected at every stage of production, We have own quality inspection team and laboratory, along with advanced equipment to ensure the qualification rate of our products up to 99%.and can provide test reports or certificates upon request. - Can I customize the product or packaging?
Yes, we offer OEM and ODM services. You can customize the product design, . Just let us know your requirements,CAD,Step Drawings,or send sample Our team will assist you throughout the process. - What is your after-sales service policy?
If you encounter any quality issues, please contact us with photos or videos. We will evaluate the situation and provide replacements, spare parts, or refunds as appropriate.
For more specs, please contact us for consultation