Design and Construction — a VPOINT router bit tool for CNC routing and nesting, sized for MDF and similar workpieces. The specification table below lists dimensions; the performance data table gives standard reference speeds and feeds to start with, and the FAQ covers selection, parameters and service. ISO 9001 production, batch-verified, custom sizes from drawings.

The VP118626 diamond lamello slotting knife cuts biscuit-joinery slots, with 100.4 mm diameter blades on 22 or 30 mm bores and 7 mm cutting width in three- and six-tooth versions. PCD tips hold the slot width in abrasive-faced panels across long production runs.

Design and Construction

The VP118626 diamond lamello slotting knife is a PCD-tipped cutter for Lamello (biscuit) joinery slots. The 100.4 mm diameter blades run 22 or 30 mm bores with 7 mm cutting width in 3-tooth and 6-tooth versions, plus an 80 mm / 16 mm-bore variant and a 3 mm-width 16-tooth version. Two small 12.7 mm tools with 9.4 mm shanks (H22) cover router-based slot cutting.

How It Works

The cutter plunges or feeds to cut the flat biscuit slot: PCD teeth hold the slot width and depth in abrasive boards, so biscuits seat with consistent fit. The multi-tooth versions spread the cutting load for smoother slot walls.

Applications

• Lamello / biscuit joinery slot cutting
• Slot cutting on panel furniture lines
• Router-based slot cutting (12.7 mm shank tools)
• MDF and plywood joinery slots

Suitable Materials

• Melamine-faced particleboard
• MDF
• Veneered plywood
• Solid wood

The PCD edge keeps slot width and depth constant in abrasive boards, holding biscuit fit 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 low-volume general work — but on abrasive sheet goods the difference in blade life is decisive.

Figures are typical published values; actual blade life depends on the workpiece material, feed rate, depth of cut, machine condition and maintenance schedule.

Delivery Scope

Single cutter. Order by part number with the diameter, bore, width and tooth count stated in the specifications table below.

Why Choose VPOINT

• One-year warranty on every blade — defects in material or workmanship are covered for 12 months from delivery.
• Custom tooling — diameters, kerfs, bores and tooth counts built to your drawing or sample.
• Non-standard fabrication — sizes outside the standard catalogue, including bore re-sizing and tooth-count changes.
• Resharpening service — blades return to service after regrinding at a fraction of new-blade 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 blade, and our engineering team will quote the exact specification you need.

Precision & Quality Control

Every blade is inspected before shipment. Outside diameter, kerf thickness, plate thickness, bore diameter and tooth count are measured against the values listed in the specifications table, and tooth geometry (hook angle, bevel angle) is verified against the design drawing. Blades are stress-checked for runout and tension before packing.

Blades measuring outside tolerance do not ship. Inspection is performed under our ISO 9001 quality system, with batch records retained for traceability.

Specifications

Performance Data

Standard reference values for guidance only — always adjust to the edge bander feed, machine condition and tool wear, and confirm on the actual panel.

Frequently Asked Questions

What is the Diamond Lamello Slotting Knife used for?

The VP118626 diamond lamello slotting knife is a PCD-tipped cutter for Lamello (biscuit) joinery slots.

How do I choose the right size?

Refer to the specification table on this page: part numbers fix the cutting diameter, shank and cutting length. State the diameter, shank and cutting length you need when ordering.

Which materials does it suit?

Typical materials include Melamine-faced particleboard, MDF, Veneered plywood. Confirm the material grade and machining conditions for the specific tool before ordering.

Can I order a custom version?

Yes. Send the profile drawing or item code together with the workpiece material, machine model, cutting direction and quantity. Tools are produced to order, and each tool is packed in an individual plastic box.

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What spindle speed and feed should I set for premilling MDF?

＋Start near 20,000–24,000 rpm spindle speed with the edge bander feed around 12–18 m/min, then fine-tune so the premill removes the saw overhang and old glue line in one clean pass.

Why PCD instead of brazed tungsten carbide for premilling?

＋On abrasive MDF and particleboard, PCD edges last 10–20 times longer (typical industry data cited in our comparison table above), so the bander runs far longer between tool changes.

How often should the premill knives be rotated or replaced?

＋Rotate the reversible inserts at the first sign of glue-line fuzzing; each edge has several usable sections, so a fresh edge takes seconds on the machine.

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