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2-Flute DLC Coated Carbide Ball Nose End Mill| DuraEdge Alu

Kortools

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Ø1.0xR0.5x4Dx50L

Ø1.5xR0.75x4Dx50L

Ø2.0xR1x4Dx50L

Ø2.5xR1.25x4Dx50L

Ø3.0xR1.5x3Dx50L

Ø3.0xR1.5x4Dx50L

Ø3.5xR1.75x4Dx50L

Ø4.0xR2x4Dx50L

Ø8.0xR4x8Dx75L

Ø4.0xR2x4Dx75L

Ø4.0xR2x4Dx100L

Ø6.0xR3x6Dx50L

Ø6.0xR3x6Dx75L

Ø6.0xR3x6Dx100L

Ø6.0xR3x6Dx150L

Ø8.0xR4x8Dx60L

Ø8.0xR4x8Dx100L

Ø8.0xR4x8Dx150L

Ø8.0xR4x8Dx200L - Out of stock

Ø10.0xR5x10Dx75L

Ø10.0xR5x10Dx100L

Ø10.0xR5x10Dx150L

Ø10.0xR5x10Dx200L

Ø12.0xR6x12Dx75L

Ø12.0xR6x12Dx100L

Ø12.0xR6x12Dx150L

Ø12.0xR6x12Dx200L

Ø14.0xR7x14Dx100L

Ø14.0xR7x14Dx150L

Ø14.0xR7x14Dx200L

Ø16.0xR8x16Dx100L

Ø16.0xR8x16Dx150L

Ø16.0xR8x16Dx200L - Out of stock

Ø18.0xR9x18Dx100L

Ø20.0xR10x20Dx100L

Ø20.0xR10x20Dx150L

Ø20.0xR10x20Dx200L

Ø5.0xR2.5x5Dx50L

Ø5.0xR2.5x5Dx75L

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Product description

DuraEdge Alu DLC-coated solid carbide ball nose end mill, Z2

Two-flute ball nose · geometry for 3D machining and profiled surfaces · for aluminium, copper, plastics and zinc alloys

The DuraEdge Alu solid carbide ball nose end mill has two cutting edges and a DLC coating. It is intended for machining non-ferrous workpieces and plastics. Its spherical end profile follows programmed paths across three-dimensional surfaces, radii, transitions and other contours where a flat-ended tool would not reproduce the same shape.

The family covers cutting diameters from Ø1 to Ø20 mm, ball radii from R0.5 to R10 mm, shank diameters from Ø3 to Ø20 mm, and overall lengths of 50, 60, 75, 100, 150 and 200 mm. These are family ranges; select the exact dimension combination in the variant selector.

Essential size rule: on a ball nose end mill, radius R is half the cutting diameter. The relationship is D = 2R. For example, Ø6.0xR3x6Dx50L specifies a 6 mm ball diameter, a 3 mm radius, a 6 mm shank and a 50 mm overall length.

1. Ball nose geometry and 3D machining

The tool end has a spherical profile. As the cutter follows a programmed path, the contact point moves around the ball as the surface inclination changes. This geometry is used for finishing profiled surfaces, mould forms, recesses, smooth transitions and spatial contours on CNC milling machines.

Both cutting edges extend through the centre of the end, and the helix angle is 35°. Z2, centre-cutting geometry and the spherical profile describe the tool construction; they do not define one universal set of cutting data for every machine, diameter and workpiece group.

Ball nose profile: for programmed paths across radii and surfaces with changing inclination.
Z2: two cutting edges in the working part.
Centre-cutting edges: both edges reach the central zone of the end.
35° helix: a fixed geometry feature of this tool family.

2. Workpiece groups and typical applications

The application range includes aluminium and aluminium alloys, copper and copper alloys, zinc alloys, PMMA / acrylic, PVC, PE, PTFE and other plastics. Wood is a secondary application rather than a primary workpiece group for this family.

Workpiece group or operation	Application
Aluminium and aluminium alloys	Milling profiled surfaces, radii, transitions and three-dimensional forms.
Copper and copper alloys	Form machining and finishing along programmed CNC paths.
Zinc alloys	Surface and profile machining with conditions selected for the particular alloy.
PMMA / acrylic	Forming and finishing 3D surfaces with effective chip evacuation.
PVC, PE, PTFE and other plastics	Contour and profile machining with conditions adapted to the cutting behaviour of the specific polymer.
Wood	A secondary application when the ball nose geometry suits the required profile.
3D machining and profiled surfaces	Guiding the spherical end along paths prepared in the CNC program.
Finishing	Final passes across radii, recesses and surfaces with changing inclination.

Select the end mill to match both the workpiece group and the geometry of the surface to be machined. This series is intended primarily for the listed non-ferrous workpieces and plastics.

3. Family technical specification

Parameter	Specification
Tool type	Ball nose end mill, two-flute ball nose
Series	DuraEdge Alu
Tool substrate	VHM — solid carbide
Coating	DLC
Flute count	2 — Z2
End profile	Ball nose
Centre geometry	Cutting edges extend through the centre
Helix angle	35°
Carbide grain size	0.6 µm
Shank	Cylindrical; diameter depends on the selected variant
Workpiece groups	Aluminium, copper, PMMA / acrylic, PVC, PE, PTFE, other plastics and zinc alloys; wood as a secondary use
Machine application	CNC milling machines, machining centres and engraving machines with suitable clamping

Cutting diameter, ball radius, shank diameter and overall length depend on the selected variant.

4. Dimensions and variant selection

Dimension	Family range	Selection check
Cutting diameter D	Ø1–20 mm	Defines the full ball diameter and access to the profiled surface.
Ball radius R	R0.5–10 mm	Half the diameter: D = 2R.
Shank diameter	Ø3–20 mm	Must match the tool holder or collet.
Overall length L	50, 60, 75, 100, 150 or 200 mm	Describes the complete tool from the end to the back of the shank; relevant to reach and overhang.

The 50–200 mm values are overall tool lengths. They are not flute lengths or cutting lengths.

First select diameter D and its corresponding radius R for the required surface form.
Check the shank diameter against the tool holder or collet.
Choose an overall length that provides the required reach with the shortest practical overhang.
Compare the full variant designation. Do not assume that every diameter is available with every overall length.

5. Reading the size designation

Example: Ø6.0xR3x6Dx50L. The designation combines four items needed to select a ball nose end mill. All dimensions are in millimetres.

Designation part	Meaning	Example value
Ø6.0	Cutting diameter D	6 mm
R3	Ball nose radius	3 mm
6D	Shank diameter	6 mm
50L	Overall tool length	50 mm

The first value and the radius describe the same ball in two ways: diameter is twice the radius. R3 does not mean a 3 mm diameter; it corresponds to Ø6 mm. The D after the third value identifies the shank diameter, while L after the final value identifies the complete tool length.

The designation does not state the cutting length. Do not derive it from the value followed by L, because L identifies the overall length of the end mill.

6. Process preparation and practical guidance

Before machining, confirm that the selected variant matches the holder, inspect the cutting edges, seat the shank correctly and secure the workpiece rigidly. A long tool should not project from the holder further than access to the surface requires. Actual overhang is part of the machining setup.

Minimise overhang. Choose an overall length that provides access, then keep only the practical length required outside the holder.
Clear chips from the cutting zone. Accumulated chips in aluminium, copper and plastics can interfere with subsequent edge passes.
Observe the polymer response. PMMA, PVC, PE and PTFE behave differently during cutting; react to chip adhesion, heat build-up or surface deterioration.
Account for ball geometry. Linear cutting speed approaches zero at the exact tip of the ball, so toolpath direction and contact point matter.
Select cutting data for the actual process. Spindle speed, feed, depth and stepover depend on diameter, workpiece, clamping, overhang and operation.

7. What the product selection includes

Item	Selection scope
Sales unit	1 DuraEdge Alu DLC-coated solid carbide ball nose end mill, Z2
Size	One variant selected in the selector and defined by diameter D, radius R, shank diameter and overall length L
Coating and geometry	DLC, Z2, 35° helix and centre-cutting edges
Check before ordering	Compare the full designation with the required ball diameter, radius, holder and reach
Quantity	The number of pieces of the selected variant entered for the order

Before adding the product to the basket, check D = 2R, the shank diameter and the L value. This separates the ball size from the clamping dimension and the complete tool length.

8. Frequently asked questions

Does R3 mean a 3 mm diameter end mill?

No. R3 is a 3 mm radius, corresponding to a Ø6 mm ball diameter. For a ball nose end mill, D = 2R.

What do the values 50, 60, 75, 100, 150 and 200 mm mean?

They are overall tool lengths, identified by the letter L.

Which workpieces is this end mill intended for?

Aluminium and its alloys, copper and its alloys, zinc alloys, PMMA / acrylic, PVC, PE, PTFE and other plastics. Wood is a secondary application.

Must the ball diameter and shank diameter be the same?

No. They are separate dimensions. The ball diameter defines the cutting part, while the shank diameter must match the holder or collet. Always check both parts of the variant designation.