Concave Half-Round Wood Router Bit 40 mm - R20 HSS
Concave Half-Round Wood Router Bit 40 mm - R20 HSS
SKU:10R20-d30
Out of stock
Couldn't load pickup availability
Half-Round Concave Cutter 130 × 40 mm – R20 / 40 mm Round Working Width
Professional router bit for rounding wooden edges, with a 20 mm concave R profile and a 40 mm working width. Ideal for creating uniform curved edges in furniture, stairs, frames, or decorative elements. Solidly built with 4 brazed HSS M2 teeth (6.5% tungsten).
🔩 Technical Specifications:
✔ Outer diameter: 130 mm
✔ Total thickness: 50 mm
✔ Active round working space: 40 mm
✔ Concave R18 profile – half-circle cut
✔ Bore: Ø30 mm, 35 and 40 mm on request
✔ 4 HSS M2 brazed teeth – smooth cut, increased durability
✔ Wear resistance: up to 3,000 linear meters in softwood
✔ Replaceable inserts – the cutter becomes a long-term investment, not a consumable
⚙️ Benefits and Applicability:
🔹 Ideal for rounding edges in furniture, stairs, countertops, frames, and curved structures
🔹 Fine and uniform cuts, without tearing wood fibers
🔹 Industrial performance – high efficiency and extended lifespan
🔹 Inserts can be resharpened or replaced – significant cost reduction over time
Compatibility:
Compatibility explanations (%):
• 90–80%: Optimal performance, the cutter works efficiently and durably.
• 79–60%: Good processing, but requires maintenance (sharpening or cooling).
• <60%: The wood is too hard or oily, leading to rapid wear of the HSS M2 cutter.
Recommendation: For exotic or very hard woods, carbide-tipped (Widia) cutters would be a more suitable choice.
