4-Flute ZrN Coated Carbide Corner Radius End Mill | VHM | VELOCITY

Kortools

Availability:

Select a variant to see available quantity pcs.

€8.17

Shipping costs are not included in the price.

Quantity

pcs.

Shipping time: 24 hours

Ask about the product

Select a product variant:

Individual variants may differ in price

Size

Select

Ø1xR0.2x4x50L

Ø1.5xR0.2x4x50L

Ø2xR0.2x4x50L

Ø2xR0.5x4x50L

Ø2.5xR0.2x4x50L

Ø2.5xR0.5x4x50L

Ø3xR0.2x3x50L

Ø3xR0.2x4x50L

Ø3xR0.5x3x50L

Ø3xR0.5x4x50L

Ø4xR0.2x4x50L

Ø4xR0.5x4x50L

Ø4xR1x4x50L

Ø5xR0.5x5x50L

Ø5xR0.5x6x50L

Ø5xR1x5x50L

Ø5xR1x6x50L

Ø6xR0.2x6x50L

Ø6xR0.5x6x50L

Ø6xR1x6x50L

Ø8xR0.5x8x60L

Ø8xR1x8x60L

Ø10xR0.5x10x75L

Ø10xR1x10x75L

Ø12xR0.5x12x75L

Ø12xR1x12x75L

Ø4xR0.5x4Dx75L

Ø4xR1x4Dx75L

Ø6xR0.5x6x75L

Ø6xR1x6x75L

Ø8xR0.5x8x75L

Ø8xR1x8x75L

Ø4xR0.5x4x100L

Ø4xR1x4x100L

Ø6xR0.5x6x100L

Ø6xR1x6x100L

Ø8xR0.5x8x100L

Ø8xR1x8x100L

Ø10xR0.5x10x100L

Ø10xR1x10x100L

Ø12xR0.5x12x100L

Ø12xR1x12x100L

Click Available to show variants with 24h shipping

Product description

VELOCITY — 4-flute solid carbide corner-radius end mill, ZrN

Ø1–12 mm cutting diameters · R0.2 / R0.5 / R1 mm corner radii · 50–100 mm overall lengths

A monolithic solid carbide (VHM) end mill with four flutes and a ZrN coating. Rounded cutting corners connect the end face to the peripheral cutting section. The corner-radius geometry produces a radiused transition between a machined floor and wall.

Select the variant by cutting diameter, corner radius R, shank diameter and overall length. Consider all four dimensions together: an identical cutting diameter does not imply the same corner radius or tool reach.

1. Geometry and applications

Feature / task	Selection guidance
Floor-to-wall radius	R specifies the rounded cutting corner. Match it to the required surface transition and include it in the CAM tool definition.
Contours, steps and pockets	Cutting diameter determines access to the machining area. Corner radius affects the shape of the surface junction, while overall length affects reach after clamping.
Small and recessed features	Choose the variant for the available space. Check clearance for the cutting section, shank and holder throughout the planned toolpath.

A corner-radius end mill has rounded corners, but does not have the hemispherical end face of a ball-nose end mill. R is not half the cutting diameter. Cutting conditions must account for the workpiece material grade and condition, and the type of operation.

2. Tool construction and specifications

Parameter	Value
Tool type	Monolithic corner-radius end mill
Tool material	VHM — solid carbide
Coating	ZrN
Number of flutes	4 — designated 4T / Z4
Cutting diameter	Ø1–12 mm, depending on the variant
Corner radius	R0.2 / R0.5 / R1 mm, depending on the variant
Shank diameter	Ø3–12 mm, depending on the variant
Overall length	50 / 60 / 75 / 100 mm, depending on the variant
Shank	Cylindrical
Helix and flute spacing	Variable helix 39.5° / 40.5°; unequal flute spacing

The ranges describe the tool family. Not every diameter is available with every radius and length. The selected variant and its card show the exact combination of dimensions. Flute count and helix geometry are inputs to cutting-condition selection; they do not determine spindle speed or feed on their own.

3. Machining operations

Operation	What to check before machining
Side and contour milling	Match cutting diameter to the contour and cutting length to the wall height. Account for the corner radius at the transition to the floor.
Pockets and steps	Match diameter and radius to the pocket geometry. Plan entry, exit and chip evacuation from the recess.
Flat surfaces	Account for the corner-radius geometry, stock allowance and stepover. Program the path for the required shape and surface finish.
Slot milling	Check the required width and floor corner radii. Full-width engagement requires separate load selection and effective chip evacuation.

The tool radius must suit the task. A rounded cutting corner leaves a radiused floor transition. Where the drawing requires a sharp floor-to-wall junction, account for this geometry when choosing the tool and operation sequence.

4. How to select a variant

Start with the cutting diameter. Check the minimum width of the machining area and contour radii in the XY plane. The corner radius R does not replace this check.
Select the corner radius R. Compare it with the required floor-to-wall fillet. Enter the actual corner radius in the CAM tool definition.
Check the shank diameter. It need not equal the cutting diameter. Select the collet or holder for the shank and the requirements of the clamping system.
Choose enough length for access. Use the shortest overhang that can complete the operation. An extended variant requires a fresh assessment of rigidity and cutting load.
Compare the full designation. In addition to the four dimensions, check cutting length and workpiece clearance. The size selector shows the available combinations.

5. How to read the dimensions

Example: Ø1xR0.2x4x50L. All dimensions are in millimetres; the dot in the code is the decimal separator.

Designation element	Meaning	Example value
Ø1	Cutting diameter	1 mm
R0.2	Cutting corner radius	0.2 mm
4	Shank diameter	4 mm
50L	Overall tool length	50 mm

Some designations include the additional letter D after the shank diameter. L indicates overall length. 4T / Z4 denotes four flutes, not the number of tools supplied.

Variant cards contain an illustrative diagram and the dimensions of the selected size. Select from the numerical values; photograph proportions must not be used to measure diameter, radius or length.

R is the corner radius and L is overall length. Neither value specifies cutting length or the permissible depth per pass. Reach after clamping also depends on the length of shank held in the holder.

6. Clamping and cutting conditions

Check the shank and holder. Clamping surfaces should be clean and undamaged. Maintain the clamping length required by the holder.
Minimise runout and overhang. This is especially relevant for small diameters and longer tools. Also check workholding rigidity.
Enter the correct CAM geometry. Set cutting diameter and corner radius, then check for collisions involving the complete tool and holder assembly.
Select speed, feed and engagement. Account for material grade and condition, diameter, four flutes, overhang and operation. Do not automatically transfer settings from a short tool to an extended one.
Monitor chips and cutting edges. Match coolant or lubrication to the process and machine. If vibration increases or finish deteriorates, check the tool, clamping and cutting conditions.

For parameter selection, provide the full tool size, workpiece material, operation, axial and radial engagement, and overhang. Coating designation alone does not replace cutting-condition selection for the actual process.

7. What you receive

Item	Order contents
Unit of sale	1 VELOCITY 4-flute solid carbide corner-radius end mill with ZrN coating
Size	The variant selected in the product selector

The quantity field sets the number of tools of the selected variant. Images showing multiple tools illustrate the product family and do not indicate a set.

8. Frequently asked questions

How does a corner-radius end mill differ from a ball-nose end mill?

A corner-radius end mill has rounded cutting corners at the perimeter of its end face. A ball-nose end mill has a hemispherical end face. The choice affects surface generation and the CAM tool definition.

Does R0.5 mean a 0.5 mm cutting diameter?

No. R0.5 specifies a 0.5 mm corner radius. A separate value preceded by Ø indicates the cutting diameter.

Can a 100 mm tool machine to a depth of 100 mm?

No. This is the overall tool length, including the section held in the holder. Cutting length, overhang and workpiece access are among the factors limiting machining depth.

Does shank diameter always equal cutting diameter?

No. For example, the variant with a 1 mm cutting diameter has a Ø4 mm shank. Check the shank dimension in the complete variant code when choosing the holder.