How hard is the cutting material?

The carbide grade used in this pcd spiral round-bottom 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 pcd spiral round-bottom 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.

PCD Spiral Round-Bottom Router Bit

20 mm-shank PCD round-bottom cutter family for shaped recesses such as bowls and spoons. 65/55 mm head diameters with 2+2T and 3+3T tooth configurations as supplied.

Product Description

Design and Construction — a VPOINT PCD V-groove / special-profile router bit for V-groove, signmaking and decorative panel work, sized for MDF and similar workpieces. Start near 20,000–24,000 rpm / 8–12 m/min (standard reference values in the performance table below); the specification table lists angles, diameters, cut lengths and shanks. Diamond edges hold 15–20× carbide life on abrasive panels. ISO 9001 production, batch-verified, custom sizes from drawings.

Design and Construction

The PCD spiral round-bottom router bit family machines shaped recesses, including the pictured bowl and spoon applications. The chart lists 20 mm shank diameter with 65 mm (33 mm head height, 2+2T) and 55 mm (28 mm head height, 3+3T) head configurations as supplied; the cutting material is PCD.

How It Works

The ball-nose head sweeps the recess in CNC passes: the spiral diamond teeth shear the curved bottom and walls while the 20 mm shank matches the tool holder. The pictured bowl and spoon show the typical finished applications of this head family.

Applications

Shaped recesses (bowls, spoons)
3D CNC surface machining
Round-bottom cavity work
CNC router production runs

Suitable Materials

Hardwood blanks
Selected softwoods
Wood-based bowl and spoon stock
Selected tool-handle materials

Material Comparison: Tungsten Carbide vs. PCD (Diamond)

This tool is a PCD (polycrystalline diamond) cutter. Tungsten carbide is the conventional alternative. Typical industry data:

Property	Tungsten Carbide Cutter	PCD (Diamond) Cutter (This Tool)
Hardness	1,500-2,000 HV	7,000-9,000 HV
Best suited for	General profiling across mixed materials	Highly abrasive boards and long production runs
Tool life vs. carbide baseline	1x (baseline)	10-15x on abrasive panels (typical industry data)
Edge wear on MDF/particleboard	Wear visible within shorter runs	Minimal wear over extended runs
Toughness	Higher toughness; tolerates impacts better	Lower toughness; sensitive to impact and metal contamination
Regrinding	Can be reground	Not reground in the normal case
Initial cost	Lower	Higher
Cost per part at long runs	Usually higher	Usually lower on abrasive, long-run work
Typical choice	Short runs and mixed materials	This tool: long-run profiling on abrasive boards

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

Delivery Scope

1 x PCD Spiral Round-Bottom Router Bit (configuration per chart)
Individual box packaging

Why Choose VPOINT

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

Precision & Quality Control

Each cutter is inspected against the specification sheet before packing: bore and diameter tolerances, cutting geometry and balance are checked under the ISO 9001 quality system, with batch traceability on every order.

Specifications

＋The source specification lists the following confirmed configurations:

Shank diameter (mm)	Head diameter (mm)	Head height (mm)	Tooth configuration as supplied
20	65	33	2+2T
20	55	28	3+3T

＋Cutting material: PCD (diamond), as listed in the source chart.

Performance Data

Standard reference values for guidance only — always adjust to machine rigidity, clamping and tool wear, and confirm on the actual workpiece.

Material	Typical spindle speed	Typical feed	Notes
MDF	20,000–24,000 rpm	8–12 m/min	PCD V-edges hold the 60° angle on abrasive MDF
particleboard	18,000–22,000 rpm	8–12 m/min	Grit-resistant diamond edges

Frequently Asked Questions

Which configurations are listed?

＋The chart lists a 20 mm shank with a 65 mm head (33 mm height, 2+2T) and a 55 mm head (28 mm height, 3+3T).

What is this bit used for?

＋Shaped recesses such as the pictured bowls and spoons, machined on CNC routers.

Which shank does it use?

＋A 20 mm shank as listed; confirm the collet size against your CNC tool holder before ordering.

What should I provide before ordering?

＋Send the required recess shape, workpiece material and CNC machine details.

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What feed should I start with when V-grooving MDF?

＋Begin near 8–12 m/min at 20,000–24,000 rpm. The 60-degree PCD point holds its angle on abrasive boards, so the V line stays crisp; tune by chip load and line quality.

Why PCD for V-groove and decorative lines?

＋The V point is the smallest, most heat-stressed edge on the tool. PCD at 7,000–9,000 HV keeps that point far longer than brazed carbide on abrasive panels.

Single or multiple passes for the V groove?

＋One pass for thin veneers; two passes (rough then finish) on dense MDF above 12 mm keep the apex sharp and the line flutter-free.

Sources & standards: ISO 9001 quality management · UNSPSC commodity codes · eClass product classification

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