4-Flute TiSiN Coated Carbide Ball Nose End Mill | BallMill Z4-T

Kortools

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€11.22

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Ø1xR0.5x2x4Dx50L

Ø1.5xR0.75x3x4Dx50L

Ø2xR1x4x4Dx50L

Ø2.5xR1.25x5x4Dx50L

Ø3xR1.5x6x4Dx50L

Ø3xR1.5x6x3Dx50L

Ø3xR1.5x6x3Dx75L

Ø3xR1.5x6x3Dx100L

Ø3.5xR1.75x7x4Dx50L

Ø4xR2x8x4Dx50L

Ø4xR2x8x4Dx75L

Ø4xR2x8x4Dx100L - Out of stock

Ø5xR2.5x10x5Dx50L

Ø5xR2.5x10x5Dx75L

Ø5xR2.5x10x5Dx100L

Ø6xR3x12x6Dx50L

Ø6xR3x12x6Dx75L

Ø6xR3x12x6Dx100L

Ø8xR4x16x8Dx60L

Ø8xR4x16x8Dx75L

Ø8xR4x16x8Dx100L

Ø10xR5x20x10Dx75L

Ø10xR5x20x10Dx100L

Ø12xR6x24x12Dx75L

Ø12xR6x24x12Dx100L

Ø14xR7x28x14Dx80L

Ø14xR7x28x14Dx100L

Ø16xR8x32x16Dx100L

Ø18xR9x36x18Dx100L

Ø20xR10x40x20Dx100L

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Product description

BallMill Z4-T — solid carbide ball nose end mill, TiSiN, 4 flutes

Cutting diameters Ø1–20 mm · ball radii R0.5–R10 mm · overall lengths 50–100 mm

BallMill Z4-T is a solid carbide ball nose end mill with a TiSiN coating and four flutes. Its spherical cutting end is intended for machining three-dimensional surfaces, contours and internal radii. The range includes sizes for fine details and larger profiled surfaces.

When selecting a variant, check cutting diameter, ball radius, cutting length, shank diameter and overall length. These dimensions describe different parts of the tool: radius is not diameter, and overall length does not specify cutting length.

1. Applications and workpiece materials

3D surface milling — guiding the cutter along successive tool paths to machine three-dimensional surfaces.
Contouring and internal radii — milling shapes that require a spherical cutting end.
Roughing and finishing — use depends on part geometry, workpiece material and selected cutting conditions.

The range covers applications in steel, stainless steel, tool steel, pre-hardened steel and cast iron. Other applications include hardened materials, superalloys and heat-resistant alloys, aluminium, copper, brass, PLEXI, PVC, POM and PE plastics, and plywood. Selection for a specific grade and material condition requires consideration of the machining conditions.

Select cutting parameters for the specific workpiece grade and hardness. Tool selection should also consider the operation and required surface finish.

2. Technical specifications

Parameter	Value
Tool type	Solid shank ball nose end mill
Series	BallMill Z4-T
Tool material	VHM — solid carbide
Coating	TiSiN
Number of flutes	4
Helix angle	35°
Cutting edge finish	Polished
Cutting diameter	Ø1–20 mm, depending on the variant
Ball radius	R0.5–R10 mm, depending on the variant
Cutting length	2–40 mm, depending on the variant
Shank diameter	Ø3–20 mm, depending on the variant
Overall length	50, 60, 75, 80 or 100 mm, depending on the variant
Shank type	Cylindrical

The ranges cover the whole series. Available combinations of diameter, shank and length are shown in the variant selector. Not every cutting diameter is available with every overall length.

3. Ball geometry and radius R

Radius R describes the spherical end of the cutter. In this series, cutting diameter is twice the ball radius: Ø6 mm corresponds to R3 mm, and Ø2.5 mm to R1.25 mm. This is the radius of the ball end, not the corner radius of a corner-radius end mill.

Shank diameter is a separate dimension. For example, the Ø1 mm cutter has a Ø4 mm shank, and the Ø3 mm cutter is available with a Ø3 mm or Ø4 mm shank. Always check the complete code of the selected variant.

4. Reading the variant code

Example: Ø6xR3x12x6Dx75L. The code contains five dimensions:

Code element	Meaning	Value
Ø6	Cutting diameter	Ø6 mm
R3	Ball radius	R3 mm
12	Cutting length	12 mm
6D	Shank diameter	Ø6 mm
75L	Overall length	75 mm

The example has four flutes. Flute count is a series feature, not another length in the code. Dimension drawings are illustrative and do not show each variant to scale — use the stated values for selection.

5. Selecting the tool for the job

Start with the part geometry. Match the cutting diameter and ball radius to the contour, internal radii and access to the surface.
Check cutting length. This describes the cutting section and is separate from overall tool length. Do not substitute the value ending in L.
Match the holder to the shank. The number before D indicates clamping diameter. In the smallest sizes, the shank can be larger than the cutting diameter.
Select reach for the operation. Consider access for both the cutter and holder. Choose a longer variant when required by the machining geometry.
Set conditions for the actual material. Select speed, feed, depth and cooling or lubrication for the workpiece grade, operation and system rigidity. The cutter is intended for a milling machine or machining centre.

6. Frequently asked questions

Does R3 mean a Ø3 mm cutting diameter?

R3 means a ball radius of 3 mm. The corresponding cutting diameter is Ø6 mm.

Does the Ø3 mm cutter always have a Ø3 mm shank?

No. This series includes Ø3 mm cutters with Ø3 mm and Ø4 mm shanks. Check the number before D in the full code.

Does 75L mean 75 mm cutting length?

75L specifies overall length. In the example Ø6xR3x12x6Dx75L, cutting length is 12 mm.

What information is needed for tool selection?

Specify the workpiece grade and hardness, shape being machined, required radius, tool reach and available holder. For special sizes, provide the complete set of dimensions.