45° Chamfer Bit with Indexable Insert and Guide Bearing

RUWI's 45° Chamfer Bit with Indexable Insert creates a 45° chamfer on edges—for breaking sharp edges and cleanly chamfering solid wood, MDF, and coated panels. Instead of brazed-on cutting edges, it features two square carbide indexable inserts (12 × 12 mm): When an edge becomes dull, simply rotate the insert—each insert offers four usable cutting edges before you need to replace it. No need to send it to a sharpening service, no downtime.

With a Ø 32 mm tool diameter and 12 mm working length, it can also cut wider chamfers in a single pass. The guide ball bearing (Ø 16 mm) guides the cutter along an edge or template; shank Ø 8 mm, overall length 65 mm, right-hand rotation (Z2).

Here's how to use it

• Batch edge chamfering: Every workpiece edge receives the same fine chamfer—to prevent tear-out during handling and splintering edges on the finished furniture.
• Continuous operation without downtime: Turning an insert takes one minute—four edges per insert, two inserts per cutter: eight fresh cutting edges before you need new inserts.
• Cutting wide bevels: The 12 mm working length creates a bold, decorative bevel in a single pass—without the need for multiple passes to create steps.
• Preparing MDF for painting: The beveled edge helps the paint adhere where sharp edges would otherwise show through.

Does this fit your router?

The shank requires an 8 mm collet. Given this head diameter, it’s worth using it in the router table at a reduced speed—it’s smoother and safer than freehand routing; the stepless adjustment of the RUWI router tables allows you to adjust it as needed. It also runs on CNC machines.

A practical limitation: The 32-series cutter head is too large for tight inside corners and small radii—in those cases, use the miniature chamfering cutter with a Ø 5 mm guide ring. If you want fixed, resharpenable cutting edges, the chamfer bit with fixed cutting edges is the alternative; see the overview of RUWI milling tools for additional cutters.

All the details

Profile
Chamfer: 45°
Tool diameter: Ø 32 mm
Working length: 12 mm
Indexable inserts: 12 × 12 mm, carbide, replaceable
Guide bearing: Ball bearing Ø 16 mm

Shank
Shank: Ø 8 mm, shank length 32 mm
Overall length: 65 mm

Cutting edges and use
Cutting edges: Z2, carbide (HW), clockwise rotation
Materials: Solid wood, MDF, coated panels
Collet: Ø 8 mm required
Net weight: approx. 65 g