Walter-prototyp 6814318 Corner Radius End Mill Head 4 Flute

Product Description

The WALTER-PROTOTYP 6814318 is a solid carbide, corner radius end mill head engineered for demanding metal removal in stainless steel and superalloy applications. Carrying the MC251 series designation and catalog number MC251-03.0-A4B050, this single-end tool features a 3.00mm mill diameter with a 0.50mm corner radius and a TiAlN PVD coating classified under the WK40RC material grade. The variable helix flute geometry supports both roughing and finishing operations while reducing chatter, making it a reliable choice for high-precision machining on live tooling setups and CNC milling centers.

This end mill head is intended for use with compatible straight-cylindrical toolholders in environments where tight tolerances and surface finish quality are critical. Primary target materials are stainless steel (Material Code M) and superalloys including titanium (Material Code S). The extended reach design, with a reach length of 21.00mm and an overall length of 57.00mm, allows access to deeper features without sacrificing rigidity. Suitable for shop floors running precision aerospace, medical, or industrial components where stainless and superalloy workpieces are routine.

Key Features

• Solid carbide construction with TiAlN PVD coating (WK40RC grade) for heat and wear resistance in difficult alloys
• Variable helix flute geometry reduces vibration during both roughing and finishing passes
• 0.50mm corner radius protects cutting edges and improves tool life at transitions
• Extended reach design (21.00mm reach length) enables access to deeper pockets and features
• Center-cutting capable with right-hand flute direction and right-hand cutting direction
• h9 mill diameter tolerance and h5 shank diameter tolerance for precise toolholder fit

Compatibility

Designed for use with straight-cylindrical toolholders accepting a 6.00mm shank diameter. Catalog reference MC251-03.0-A4B050 within the WALTER-PROTOTYP MC251 series.

Installation Notes

Installation should be performed by a qualified machinist familiar with precision toolholder assembly and CNC setup procedures. Ensure the toolholder bore and shank surfaces are clean and free of burrs before seating the end mill head. Confirm machine spindle is fully stopped and locked out before any tool change. Follow the toolholder manufacturer torque specifications for clamping to maintain the h5 shank tolerance interface.