Note: actual product colours may vary slightly from the images, depending on monitor settings and photo lighting.

Vatzo

Concave Shank Router Bit (Quarter Round) - R4 | Z2 – HW (K40)

SKU: V1017.S6.R4
€14,90 incl. VAT
Only 3 left
Limited stock
Queue (S)
Free technical advice

Not sure which tool or accessory you need? Send us a photo, a sketch or your machine model – we'll help you choose.

Free delivery in Romania over 600 lei
100% secure payments
Professional quality

Got questions?

We're here to help

Ask a specialist!

Email +40 756 733 343

Round Over Router Bit with Bearing – T.C.T. Carbide | R4 mm | D18 mm | Z2

Router bit with shank and T.C.T. (Carbide) guide bearing, with two active cutting edges (Z2), for rounding over edges with an R4 mm quarter-circle profile. The top-mounted bearing faithfully follows the contour of the material — no guide rails needed, directly on the edge of the workpiece, including curved shapes, round tables, or irregular countertops. Available with a shank of Ø6 mm or Ø8 mm — select from the menu.

Profile Radius (R) Profile Radius (R)R4 mm – perfectly calibrated quarter-circle
Cutting Diameter (D) Cutting Diameter (D)18 mm
Working Depth (Lc) Working Depth (Lc)8 mm
Total Length (L) Total Length (L)49 mm
Shank Diameter (S) Shank Diameter (S)Ø6 mm or Ø8 mm – select from menu
Number of Cutting Edges Number of Cutting EdgesZ2 – two symmetrical cutting edges, perfect dynamic balance
Blade Material Blade MaterialT.C.T. Carbide (high-density metallic carbide)
Guiding System Guiding SystemInterchangeable precision bearing mounted at the tip
Machine Compatibility Machine CompatibilityHandheld router or fixed router table with Ø6 mm or Ø8 mm collet

✨ CONSTRUCTION ADVANTAGES:

  • Guide Bearing – No Auxiliary Guides: the bearing faithfully follows the contour of the workpiece, including curved shapes, round tables, countertops, or arches — impossible to achieve with a standard parallel guide.
  • T.C.T. Carbide – No Burning: carbide inserts ensure clean chip removal without tear-out and excellent resistance to abrasive wear on particleboard, MDF, plastic, and solid wood.
  • Profile with or without Step: by adjusting the router bit depth 0.5–1 mm deeper than the board's surface, a small aesthetic step above the radius is achieved — a classic cornice look.
  • Symmetrical Z2 – Minimum Vibrations: the two balanced cutting edges eliminate idle vibrations and protect the router's bearings.
  • Interchangeable Bearing: can be replaced separately when worn, without changing the router bit.

📊 MATERIAL COMPATIBILITY

Soft Solid Wood (Spruce, Fir, Pine, Linden) 100%
Excellent: clean rounding, no tear-out, smooth edge ready for varnishing.
Particleboard / MDF / HDF / Plywood 100%
Excellent: carbide resists abrasive synthetic binders in wood-based panels.
Hard Solid Wood (Oak, Beech, Ash) 90%
Very good: we recommend two passes — one quick for the bulk of the material, one fine for a mirror finish.
Technical Plastics 85%
Good: lower speed recommended to avoid melting plastic.

🛠️ ADJUSTMENT AND OPERATION TIPS:

  • Simple rounding vs. profile with step: for simple rounding, align the top edge of the cutting blade with the board's surface. For a decorative profile with a step, lower the router bit by 0.5–1 mm — achieving a classic cornice look.
  • Two passes on hardwoods: for oak, beech, or ash, do not force a single slow pass (risk of scorching). The first quick pass removes the bulk of the material, the second fine pass provides a mirror finish.
  • Bearing maintenance: after working on resinous wood (pine, fir) or MDF, clean the bearing of resin deposits with a degreasing spray and apply a drop of fine oil — ensure free rotation without friction marks on the edge.

Delivery in 24–48 working hours for in-stock products, by courier (Fan Courier, Sameday, Cargus, DPD, GLS).

Free delivery in Romania for orders over 600 lei. We also ship to the EU, Moldova and Ukraine – the cost is calculated at checkout. Details in our Shipping policy.

This product is covered by the legal guarantee of conformity of at least 2 years, under EU and Romanian law. If the product does not match its description or does not work as intended, you are entitled to free repair or replacement and, in some cases, a price reduction or refund.

See the EU notice on the legal guarantee · europa.eu/youreurope – guarantees

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Order several variants

Variant Quantity Price Total
6 mm V1017.S6.R4
€14,90 incl. VAT
€0,00
€14,90 incl. VAT
€0,00
8 mm V1017.S8.R4
€14,90 incl. VAT
€0,00
€14,90 incl. VAT
€0,00
View cart
0 Total items
€0,00

Product subtotal