4-flute VHM end mill with ZRN coating, VELOCITY

Kortools

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€8.07

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Ø1x3x4Dx50L

Ø1.5x4x4Dx50L

Ø2x6x4Dx50L

Ø2.5x7x4Dx50L

Ø3x9x3Dx50L

Ø3x9x4Dx50L

Ø3.5x11x4Dx50L

Ø4x12x4Dx50L

Ø5x13x5Dx50L

Ø5x13x6Dx50L

Ø6x15x6Dx50L

Ø8x20x8Dx60L

Ø8x24x8Dx60L

Ø3x12x3Dx75L

Ø4x16x4Dx75L

Ø6x24x6Dx75L

Ø8x25x8Dx75L

Ø10x25x10Dx75L

Ø12x30x12Dx75L

Ø3x12x3Dx100L

Ø4x20x4Dx100L

Ø6x30x6Dx100L

Ø8x35x8Dx100L

Ø10x40x10Dx100L

Ø12x45x12Dx100L

Ø14x45x14Dx100L

Ø16x45x16Dx100L

Ø18x45x18Dx100L

Ø20x45x20Dx100L

Ø6x45x6Dx150L

Ø8x50x8Dx150L

Ø10x55x10Dx150L

Ø12x55x12Dx150L

Ø14x70x14Dx150L

Ø16x70x16Dx150L

Ø20x70x20Dx150L

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Product description

VELOCITY solid carbide end mill — ZrN, 4 flutes

Variable helix 39.5° / 40.5° · cutting diameters Ø1–20 mm · overall lengths 50–150 mm

VELOCITY is a solid carbide end mill with four flutes and a ZrN coating. Its variable 39.5° / 40.5° helix and unequal flute spacing are geometry features designed to help reduce vibration during milling.

Choose the tool for the workpiece material, required cutting diameter and reach. The full variant code specifies cutting diameter, cutting length, shank diameter and overall length separately. Available size combinations are shown in the variant selector.

1. Applications and workpiece materials

The VELOCITY ZrN series is intended for milling non-ferrous metals, including aluminium, copper and titanium. Cutting conditions must be selected for the specific alloy, material condition and machining setup.

Material	Selection considerations
Aluminium and its alloys	Consider the alloy, lubrication and chip evacuation. For full-width slotting, select the cutting load to suit the four-flute geometry.
Copper and its alloys	Adapt cutting conditions to the alloy and required surface quality. Use cooling or lubrication appropriate to the operation.
Titanium	Select cutting conditions for the grade, clamping rigidity and tool overhang. Do not transfer settings directly from aluminium machining.
Mild steels	Assess suitability for the specific material and operation. The coating name alone does not define the required cutting conditions.

316 stainless steel, Inconel and other heat-resistant alloys require separate tool selection. Before choosing this series for these applications, specify the material grade and planned operation.

2. Construction and technical specifications

The carbide body and cutting section form a single solid tool. The ZrN coating helps limit friction and material adhesion. Variable helix and unequal flute spacing do not replace correct clamping, cutting conditions and runout checks.

Parameter	Value
Tool type	Solid end mill
Series	VELOCITY
Tool material	VHM — solid carbide
Coating	ZrN
Flutes	4 — Z4
Flute geometry	Variable helix 39.5° / 40.5°; unequal flute spacing
Cutting diameter	Ø1–20 mm, depending on the variant
Shank diameter	Ø3–20 mm, depending on the variant
Overall length	50, 60, 75, 100 or 150 mm, depending on the variant
Sales unit	1 piece

These ranges describe the series. Not every cutting diameter is offered with every length and shank diameter. Read the full variant code for the dimensions of the selected tool.

3. Understanding the variant code

Example: Ø6x15x6Dx50L. All four values represent dimensions in millimetres.

Code element	Meaning	Value
Ø6	Cutting diameter	6 mm
15	Cutting length	15 mm
6D	Shank diameter	6 mm
50L	Overall length	50 mm

Overall length L is not cutting length. A 150L variant has an overall length of 150 mm; usable machining reach also depends on cutting length and clamping. Dimension illustrations are schematic and are not to scale.

4. Selection and working conditions

Match both diameters. Cutting diameter describes the cutting section. Select the holder separately for the shank diameter indicated by D.
Select the length for the part. Check cutting length, required access and holder clearance. Keep overhang as short as practical.
Check clamping. Clean the shank and holder, inspect their condition and check runout after clamping.
Provide cooling and chip evacuation. The working method should suit the material and operation geometry.
Set cutting conditions for the actual job. Speed, feed and flute engagement depend on material, diameter, overhang and system rigidity. Extended tools require their greater overhang to be taken into account.

5. What your order includes

You receive 1 VELOCITY solid carbide ZrN end mill with four flutes, in the selected size. The order quantity specifies the number of tools of that variant.

6. Frequently asked questions

Does Z4 mean four tools?

Z4 means four flutes on one end mill. The sales unit is one tool.

Is shank diameter always equal to cutting diameter?

No. For example, Ø1x3x4Dx50L has a Ø1 mm cutting diameter and a Ø4 mm shank. Check the value followed by D.

Does variable helix eliminate all vibration?

The geometry helps reduce vibration, but the result also depends on clamping, overhang, the part and cutting conditions.

What information is needed to select the tool?

Specify material grade, operation type, required dimensions, planned overhang and clamping diameter. These details help assess the right size and working conditions.