- PCD Tools For Wood
- Replaceable Insert Router Bits
- CNC End Mill
- Cutter Head
- Woodworking Tools
- Industries Knives
- Carbide Burr
- Carbide Rotary Burr
- Tungsten Carbide Burr Bits
- Tungsten Carbide Burr Set
- Cylindrical Carbide Burr
- Long Shank Carbide Burr
- Double Cut Carbide Burr
- Flame Carbide Burr
- Cone Carbide Burr
- Burr Blanks
- Carbide Rods
- Tire Reamer Bit
- Tungsten Carbide Particles
- Carbide Composite Rods
- Tungsten Carbide End Mill
- Carbide Tire Studs
- Snow Tire Studs
- ATV Tire Studs
- Motorcycle Tire Studs
- Mining & Oiling
PCD Half Round Bits
This PCD half round bit machines half-round edge profiles for stair treads, window sills and shelves. The diamond edge rounds the edge section cleanly and holds the radius through long runs on abrasive panel materials.
PCD Half Round Bits for CNC Woodworking
This PCD half round bit machines half-round edge profiles for stair treads, window sills and shelves. The diamond edge rounds the edge section cleanly and holds the radius through long runs on abrasive panel materials.
Design and Construction
＋Polycrystalline diamond (PCD) cutting edges are brazed onto a steel body with a half-round profile. The chart lists part numbers 0606W2304–6908 with cutting diameters from 23.4 to 68.8 mm, radii from 3.17 to 25.4 mm and profile widths from 6.35 to 50.8 mm, in 1/4″ and 1/2″ shanks. The series is produced in the Sichuan and Dongguan, China manufacturing bases.
How It Works
＋In the CNC router the half-round profile follows the workpiece edge, rounding the section in one pass. The PCD edge keeps the radius constant across stair treads, sills and shelf edges without the edge breakdown that dulls carbide.
Applications
- Half-round edge profiles for stair treads, window sills and shelves
- Edge rounding on CNC routers and edge-processing machines
Suitable Materials
- MDF, chipboard and calcium board, subject to grade and application review
- Suitability depends on the specific material grade, profile and machining conditions; confirm the application before ordering
Material Comparison: Traditional Carbide Router Bit vs. Diamond (PCD) Router Bit
＋Typical industry data for reference. Actual results depend on the workpiece grade, machine condition and feed rate.
| Property | Traditional Carbide Router Bit | Diamond (PCD) Router Bit |
|---|---|---|
| Cutting edge hardness | 1,500–2,000 HV (carbide) | 7,000–9,000 HV (PCD diamond) |
| Edge life on abrasive panels | Baseline (1×) | 15–20× longer edge life |
| Heat resistance of the edge | Loses hardness above ≈ 315 °C | Retains hardness up to ≈ 1,000 °C |
| Feed rate at equal quality | Lower | Higher |
| Sharpness retention on MDF / particleboard | Dulls quickly | Holds the edge through long runs |
| Regrinding cycles over tool life | 2–4 times | 5–8 times |
| Cut edge quality as the edge wears | More fuzzing and tearout | Consistent clean walls |
| Chipping risk on brittle boards | Higher at high feed | Lower, stable edge at high feed |
| Typical machines | Light-duty routers | CNC routers, engraving and routing machines |
| Cost per metre of cut | Higher over long runs | Lower over long runs |
Delivery Scope
Each tool is packed in an individual plastic box.
＋Each order also includes an inspection record. Send the edge section and workpiece thickness, required radius and profile width, machine model, cutting direction and quantity; a cross-section drawing is reviewed for custom half-round profiles.
Why Choose VPOINT
＋VPOINT supports this PCD router bit series with:
- One-year warranty on every tool
- Custom profiles, diameters and shanks produced to order
- Regrinding service to extend tool life
- Factory direct since 2008, ISO 9001 certified
- Dual manufacturing bases in Sichuan and Dongguan, China
Precision & Quality Control
＋Every half round bit is inspected before shipment: cutting diameter, radius, shank diameter and tool runout are checked against the specification table at micron level. Production follows an ISO 9001 process with batch traceability, so reorders match the original configuration.
Specifications
The table below is transcribed from the original product chart. D = cutting diameter, R = radius, B = profile width, in millimetres; sizes are reference inch combinations.
| Part no. | Reference size (in.) | D (mm) | R (mm) | B (source chart) |
|---|---|---|---|---|
| 0606W2304 | 1/4 × 1/4 | 23.4 | 3.17 | 6.35 |
| 0606W2504 | 1/4 × 5/16 | 25 | 3.96 | 7.93 |
| 0606W2704 | 1/4 × 3/8 | 26.5 | 4.76 | 9.52 |
| 0606W3004 | 1/4 × 1/2 | 29.5 | 6.35 | 12.7 |
| 0606W2308 | 1/2 × 1/4 | 23.4 | 3.17 | 6.35 |
| 0606W2508 | 1/2 × 5/16 | 25 | 3.96 | 7.93 |
| 0606W2708 | 1/2 × 3/8 | 26.5 | 4.76 | 9.52 |
| 0606W3008 | 1/2 × 1/2 | 29.5 | 6.35 | 12.7 |
| 0606W3308 | 1/2 × 5/8 | 33 | 7.96 | 15.9 |
| 0606W3608 | 1/2 × 3/4 | 36 | 9.52 | 19.05 |
| 0606W3908 | 1/2 × 7/8 | 39.2 | 11.1 | 22.2 |
| 0606W4208 | 1/2 × 1 | 42.4 | 12.7 | 25.4 |
| 0606W4608 | 1/2 × 1-1/8 | 45.5 | 14.3 | 28.6 |
| 0606W4908 | 1/2 × 1-1/4 | 48.7 | 15.9 | 31.75 |
| 0606W5208 | 1/2 × 1-3/8 | 51.9 | 17.45 | 34.9 |
| 0606W5508 | 1/2 × 1-1/2 | 55.1 | 19.05 | 38.1 |
| 0606W5808 | 1/2 × 1-5/8 | 58.28 | 20.64 | 41.28 |
| 0606W6208 | 1/2 × 1-3/4 | 61.5 | 22.2 | 44.45 |
| 0606W6908 | 1/2 × 2 | 68.8 | 25.4 | 50.8 |
Original specification chart, 0606W2304–6908
Frequently Asked Questions
Which radii are available?
＋The chart lists radii from 3.17 to 25.4 mm with cutting diameters from 23.4 to 68.8 mm, in 1/4″ and 1/2″ shanks, as shown in the chart.
Which applications is it for?
＋Half-round edge profiles for stair treads, window sills and shelves; match the radius and profile width to the edge section and workpiece thickness.
Can I order a custom half-round profile?
＋Yes — include a cross-section drawing of the required profile for review; custom radii are produced to order.
What should I send for a quotation?
＋The edge section and workpiece thickness, required radius and profile width, machine model, cutting direction and quantity.
＋Key words: PCD half round bit, diamond bullnose router bit, stair tread edge bit, shelf rounding bit
