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PCD Diamond Straight Flat Router Bit
The PCD diamond straight flat router bit pairs a solid PCD cutting edge with a 40Cr chrome-molybdenum steel body for flat-bottomed cutting. The straight geometry grooves and slots with square corners on CNC routers and machining centres, and the PCD edge holds corner sharpness and a flat bottom in abrasive faced boards. Diameter, shank and cutting length are produced to order.
Design and Construction
The PCD diamond straight flat router bit pairs a solid PCD cutting edge with a 40Cr chrome-molybdenum steel body for straight, flat-bottomed cutting. Bits are produced to order: cutting diameter, shank, cutting length and flute configuration are matched to the machine and the material.
How It Works
The straight flat geometry cuts a flat-bottomed slot with square corners — the geometry for grooving, slotting and sizing passes on CNC routers and machining centres. The PCD edge holds the corner squareness and the flat bottom in abrasive faced boards.
Applications
- Grooving and slotting on CNC routers
- Straight sizing cuts in panels
- Flat-bottomed pocket floors
- Panel furniture machining
Suitable Materials
- Melamine-faced particleboard
- MDF and laminated boards
- Veneered plywood
- Solid wood
The PCD edge holds square corners and a flat bottom in abrasive sheet goods across long runs.
Material Comparison: PCD vs. Tungsten Carbide
The figures below are typical industry data for production woodworking. PCD does not replace carbide in every job — carbide remains the right choice for steel, cast iron and low-volume general work — but on abrasive sheet goods the difference in service life is decisive.
| Property | PCD Diamond (This Tool) | Tungsten Carbide |
|---|---|---|
| Hardness | 7,000–9,000 HV | 1,500–2,000 HV |
| Tool life on MDF / particleboard / melamine | 15–20× longer (500–1,200 h) | 30–60 h (baseline) |
| Tool life on solid hardwood | 10–13× longer (800–2,000 h) | 80–150 h (baseline) |
| Tool life on acrylic / plastics | 10–15× longer (1,000–3,000 h) | 100–200 h (baseline) |
| Resharpening cycles | 5–8 regrinds (thick tips up to 10); each pass removes only 0.2–0.3 mm of diamond | 4–6 regrinds, each removing more material |
| Surface finish | Ra ≤ 0.2 μm achievable, stable over the tool life | Ra ~0.8 μm typical, degrades as the edge wears |
| Thermal conductivity | 540–560 W/m·K — heat leaves the edge fast | ~80 W/m·K |
| Friction coefficient | ≈ 0.05 — lower cutting forces | ≈ 0.3 |
| Suited for | Abrasive engineered wood, laminates, composites, plastics, non-ferrous metals | General-purpose; the only choice for steel and cast iron |
Figures are typical published values; actual tool life depends on the workpiece material, feed rate, depth of cut, machine condition and maintenance schedule.
Delivery Scope
Bits are made to order. Send the cutting diameter, shank, cutting length and flute count, or the old bit as a sample, and our engineering team will quote the exact specification.
Why Choose VPOINT
- One-year warranty on every cutter — defects in material or workmanship are covered for 12 months from delivery.
- Custom tooling — diameters, bores, cutting widths and tooth counts built to your drawing or sample.
- Non-standard fabrication — profiles and sizes outside the standard catalogue, including profile restoration.
- Resharpening service — cutters return to service after regrinding at a fraction of new-tool cost.
- Factory-direct since 2008 — ISO 9001 manufacturing in Sichuan and Dongguan, China; 40Cr chrome-molybdenum steel bodies; no trading intermediaries.
Send a drawing, a sample or a worn tool, and our engineering team will quote the exact specification you need.
Precision & Quality Control
Every cutter is inspected at micron level before shipment. Cutting diameter (ØD), bore (Ød), cutting width/height (B/H) and overall dimensions are measured against the values listed in the specifications table, and cutting edge runout and concentricity are verified on the assembled tool.
Tools measuring outside tolerance are reground or scrapped — they do not ship. Inspection is performed under our ISO 9001 quality system, with batch records retained for traceability.
Specifications
Bits are produced to order against cutting diameter, shank diameter and cutting length. The dimension drawing below shows the measured values for the standard range.
Key words: PCD straight router bit, diamond flat router bit, straight flute PCD bit, CNC grooving bit
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