Concave Quarter Round Wood Router Bit R40 mm - T.C.T Carbide

Concave Quarter Round for 40 mm Edge Rounding – HSS M2 Plated

🔩 Technical Specifications:

The professional concave quarter-round router bit R40 (HM/Carbide) is designed for precise edge profiling, making it the ideal tool for achieving perfect external roundings.

Equipped with brazed carbide inserts, this router bit is specially optimized for working with composite materials such as particleboard or MDF, as well as for hardwood species, where standard HSS tools would wear out quickly. The robust construction ensures a clean cut, without tear-out, and a much longer cutting edge life under intensive use, maintaining the precision of the R40 profile even after prolonged use.

⚠️ The router bit is available in two cutting directions:

Right (above the wood) and Left (below the wood) – so you can choose the optimal variant for your feed direction and machine configuration.

Features and Benefits:

✅ 40 mm concave radius – ideal for deep profiles, flutes, and decorative shapes

✅ Premium HSS M2 – durable plates, consistent performance, and long lifespan

✅ Clean and precise cutting – optimized geometry for a smooth finish without fiber tearing

✅ High versatility – suitable for furniture, architectural elements, and artisanal processing

✅ Stability in operation – balanced body, ideal for professional machines with standard bore

📌 Choose the appropriate cutting direction (right or left) and achieve perfect contours for solid wood projects.

⚠️ Limitations in use:

❌ We do not recommend the HSS variant for particleboard, MDF, HDF, or very hard exotic wood

❌ For composite materials or demanding applications, choose the variant with carbide inserts