Two Blade Woodworking Taper Ball Cutter (Coated)

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On October 20, 2026

Design and Construction — a VPOINT end mill tool for CNC milling, 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.

Design and Construction

The two-blade taper ball cutter (coated) pairs a taper ball-nose geometry with a coated tungsten carbide body. Shank diameters (SHK) run 3.175–12 mm, tip diameters (CED) run 0.25–2 mm, cutting reference lengths (CEL) 0.5–4 mm and overall lengths (OVL) 38–150 mm, as listed in the specifications table.

How It Works

The taper ball nose reaches into recessed relief detail while the taper adds rigidity the straight ball nose lacks — less deflection at a given depth of cut. The coating raises edge hardness for abrasive moulding stock. Two flutes finish 3D surfaces with a controlled step-over.

Applications

3D relief carving on CNC routers
Mould and pattern machining
Deep recess finishing where rigidity matters
Furniture ornament and door panel carving

Suitable Materials

Solid wood
MDF and HDU board
Engineered wood
Moulding wax and pattern stock

The taper geometry resists deflection in deep relief passes; the coating extends edge life in abrasive stock.

Material Comparison: Tungsten Carbide vs. PCD

The figures below are typical industry data for CNC tooling. Tungsten carbide is the economic standard for general CNC routing — tough, regrindable and available in every geometry. PCD wins on very high-volume abrasive work; this page covers the carbide line, and the comparison shows where each material wins so you can match the tool to the job.

Property	Tungsten Carbide (This Tool)	PCD Diamond
Hardness	1,500–2,000 HV	7,000–9,000 HV
Tool life on MDF / particleboard / melamine	30–60 h (baseline)	15–20× longer (500–1,200 h)
Tool life on solid hardwood	80–150 h (baseline)	10–13× longer (800–2,000 h)
Edge renewal	4–6 regrinds at shorter intervals	5–8 regrinds, each removing only 0.2–0.3 mm of diamond
Surface finish	Ra ~0.8 μm typical, degrades as the edge wears	Ra ≤ 0.2 μm achievable, stable over the tool life
Thermal conductivity	~80 W/m·K	540–560 W/m·K — heat leaves the edge fast
Friction coefficient	≈ 0.3	≈ 0.05 — lower cutting forces
Fracture toughness	Higher — tolerates interrupted cuts and impacts better	Lower — needs stable, vibration-free setups
Suited for	General-purpose CNC routing in wood, panels, acrylic; the economic standard	Very high-volume abrasive panel work; non-ferrous metals

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

Single cutter. Order by part number with the shank, tip diameter and shank length stated in the specifications table below.

Why Choose VPOINT

One-year warranty on every cutter — defects in material or workmanship are covered for 12 months from delivery.
Custom tooling — diameters, shanks, cutting lengths and flute configurations built to your drawing or sample.
Non-standard fabrication — sizes outside the standard catalogue, including special geometries.
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; 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 before shipment. Shank diameter, cutting-edge diameter, cutting length and overall length are measured against the values listed in the specifications table, and cutting edge runout is verified on the assembled tool.

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

Specifications

Part NO.	SHK	CED	CEL	OVL
102832538	3.175	0.25	0.5	38
102830538	3.175	0.5	1	38
102842550	4	0.25	0.5	50
102840550	4	0.5	1	50
102847550	4	0.75	1.5	50
102841050	4	1	2	50
102842520	4	0.25	0.5	50
102840520	4	0.5	1	50
102847520	4	0.75	1.5	50
102841020	4	1	2	50
102842575	4	0.25	0.5	75
102840575	4	0.5	1	75
102847575	4	0.75	1.5	75
102740175	4	1	2	75
102862550	6	0.25	0.5	50
102860550	6	0.5	1	50
102867550	6	0.75	1.5	50
102860150	6	1	2	50
102862575	6	0.25	0.5	75
102860575	6	0.5	1	75
102867575	6	0.75	1.5	75
102861075	6	1	2	75
102861575	6	1.5	3	75
102862075	6	2	4	75
102862010	6	2	4	100
102880585	8	0.5	1	85
102881085	8	1	2	85
102881585	8	1.5	3	85
102882085	8	2	4	85
102880510	8	0.5	1	100
102881010	8	1	2	100
102881510	8	1.5	3	100
102882010	8	2	4	100
102812011	10	2	4	110
102812212	12	2	4	120
102812115	12	1	2	150

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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	18,000–22,000 rpm	6–10 m/min	Nesting and grooving; watch heat at small diameters
particleboard	16,000–20,000 rpm	5–8 m/min	Reduce feed if the face starts to chip
plywood	16,000–20,000 rpm	5–8 m/min	Keep the compression or shear geometry inside the panel
veneered board	18,000–20,000 rpm	5–7 m/min	Light finish passes protect the veneer
solid wood	15,000–20,000 rpm	4–9 m/min	Grain direction affects finish; climb-cut when possible
hardwood	14,000–18,000 rpm	3–7 m/min	Lower feed in dense grain

Frequently Asked Questions

What is the taper used for?

The tapered profile leaves a draft angle on the sidewall — useful for mould plugs, dies and angle work that straight walls cannot release.

Which speed for the small tip diameter?

Speed is set by the tip, not the shank. Use the small-diameter end of the range and rise as you deepen.

How do I avoid tip breakage?

Light passes, constant feed and full chip evacuation; the tip is the weakest section.

Where do these reference values come from?

They are standard reference ranges for this tool family, compiled from our specification sheets and common workshop practice — always confirm on the actual workpiece.

Related Search Terms

solid carbide end mill, CNC end mill, compression router bit, upcut spiral bit, downcut spiral bit, single flute end mill, two flute end mill, spiral flutes end mill, slotting end mill, profiling end mill, steel slotting cutter, aluminium end mill, acrylic end mill, nano coating end mill, corn milling cutter

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