How hard is the cutting material?

The carbide grade used in this 3-flute arc bending router bit delivers 1,500-2,000 HV / 7,000-9,000 HV hardness, which keeps the cutting edge sharp under continuous load.

Can you supply OEM or ODM parts, and how fast?

Yes. VPOINT TOOLS runs two factories in China (Chengdu and Dongguan) and accepts OEM and ODM orders. Standard samples and in-stock items ship within 24-48 hours; custom tooling is quoted per specification.

Which machines and materials is this 3-flute arc bending router bit used for?

It is used on CNC routers, table saws and spindle moulders for cutting particle board, MDF, plywood, solid wood and aluminium composite panels. Chipbreaker or replaceable-insert models are available for high-volume production runs.

Do you ship worldwide?

Yes. VPOINT TOOLS ships carbide and PCD woodworking tooling to more than 100 countries. Tell us the destination and application and we will confirm freight cost and lead time.

3-Flute Arc Bending Router Bit

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3-flute carbide arc bending router bit for folding profiles in plywood, particleboard, MDF, blockboard and ecological boards. Titanium-coated version; 1/2 in shank, model 32-206. Coating and geometry are confirmed against the bend drawing before ordering.

Product Description

Design and Construction

The 3-flute arc bending router bit is a one-piece tungsten carbide router bit with three cutting flutes that machine the specified arc-bending or folding profile in panel materials. The tool shown carries a 1/2 in shank with the model marking 32-206 and profile marking XR18 engraved on the shank, and is supplied as a titanium-coated version; the coating and geometry are confirmed against the finished bend drawing when ordering.

How It Works

The three flutes shear the bend-line profile in a programmed pass on the CNC router: the relief cut weakens the line so the sheet folds into the arc without a separate bending jig. The achievable bend and the remaining material web depend on the board construction and the cut profile, so a trial on the intended panel is required; a one-pass, no-polishing finish is not guaranteed and depends on the material.

Applications

Arc-bend and folding profile machining on flat panels
Curved furniture parts and cabinet components
Curved panel edges on CNC routers
Bend-line cutting programmes for display and interior fittings

Suitable Materials

Plywood
Particleboard
MDF
Blockboard
Ecological boards

The bend-line geometry folds flat panels into consistent arcs; the result depends on board construction, so a trial cut is required.

Material Comparison: Tungsten Carbide vs. PCD (Diamond)

This bit is a tungsten-carbide three-flute router bit. PCD (polycrystalline diamond) router bits are the alternative for very long production runs. Typical industry data:

Property	Tungsten Carbide Router Bit (This Tool)	PCD (Diamond) Router Bit
Hardness	1,500-2,000 HV	7,000-9,000 HV
Best suited for	General arc-bending work across panel materials	Highly abrasive boards and very long runs
Edge sharpness	Very sharp, smooth shearing cut	Extremely sharp, brittle edge
Tool life vs. carbide baseline	1x (baseline)	10-15x on abrasive panels (typical industry data)
Resistance to chipping	Tough; tolerates staples and hard spots better	Low toughness; sensitive to impact and metal contamination
Regrinding	Can be reground	Not reground in the normal case
Initial cost	Lower	Higher
Cost per hole for short runs	Usually lower	Usually higher unless run is very long
Typical choice for this profile	Standard choice for mixed/short production	Chosen for long-run single-material production

Typical industry data; actual tool life varies with board, machine and feeds.

Delivery Scope

1 x 3-Flute Arc Bending Router Bit (titanium-coated version)
Protective rubber sleeve on the cutting edge
Individual box packaging

Why Choose VPOINT

One-year warranty on manufacturing defects
Custom and non-standard geometries supported against drawings
Regrinding service available
Factory-direct since 2008, ISO 9001 certified
Manufacturing in Sichuan and Dongguan, China

Precision & Quality Control

Each bit is inspected to micron-level tolerances against the specification sheet: cutting geometry, shank runout and concentricity are checked before packing under the ISO 9001 quality system, with batch traceability on every order.

Specifications

＋The source specification sheet lists the following confirmed points; remaining dimensions are confirmed against the finished bend drawing before ordering (no values are invented):

Flute count: 3
Shank diameter: 1/2 in (shank engraving)
Model marking: 32-206, profile marking XR18 (shank engraving)
Coating: titanium-coated version (confirm at order)
Cutting diameter, profile radius and overall length: confirmed against your finished bend drawing

＋To confirm the specification, send the finished bend drawing, board construction and thickness, required cut profile, and shank and CNC machine details. Test the remaining web and bend on the actual panel material before production.

Frequently Asked Questions

What is a 3-flute arc bending router bit used for?

＋It machines the arc-bending (folding) profile that lets a flat panel bend around a radius, for curved furniture parts, cabinet components and display profiles.

Which materials can it machine?

＋The listed materials are plywood, particleboard, MDF, blockboard and ecological boards. Board construction and thickness affect the result, so a trial cut on the intended panel is required.

Which shank size does it use?

＋The tool shown carries a 1/2 in shank with model marking 32-206 and profile marking XR18 on the shank. Confirm shank size against your CNC collet when ordering.

What should I provide before ordering?

＋Send the finished bend drawing, board construction and thickness, required cut profile, and shank and CNC machine details, so the coating and geometry can be confirmed against your application.

＋Key words: arc bending router bit, 3 flute router bit, folding router bit, curved panel router bit