Walter-prototyp 7254795 Corner Radius End Mill 1mm Carbide

Product Description

The WALTER-PROTOTYP 7254795 is a solid carbide corner radius end mill designed for high-performance milling in hard materials. Part of the MC281 series, it features a 1 mm cutting diameter and a 0.25 mm corner radius with a TiAlSiN PVD coating applied to extend tool life in demanding cutting environments. The two-flute, right-hand helical geometry handles both roughing and finishing operations in a single tool. With an extended reach design and a neck diameter of 0.97 mm, it is suited for deep-cavity and tight-clearance applications where standard length tools cannot reach. Licensed machinists and precision CNC operators working in die-and-mold, aerospace, and medical component manufacturing are the primary users.

This end mill is intended for milling hard workpiece materials, including hardened steels and similar high-strength alloys. The extended reach length of 22 mm allows access to deep pockets and walls without sacrificing rigidity at the narrow neck. The straight cylindrical shank mounts directly into compatible toolholders with a 4 mm bore. Its centercutting capability supports plunge entry as well as conventional peripheral and slot milling operations on CNC machining centers running tight-tolerance programs.

Key Features

• TiAlSiN PVD coating for elevated heat resistance and extended tool life in hard material cutting
• 0.25 mm corner radius reduces stress concentration and improves surface finish at part edges
• Extended reach with 22 mm reach length and 0.97 mm neck diameter for deep-cavity access
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand helical flutes with coarse pitch geometry support both roughing and finishing passes
• Mill diameter tolerance h7 and shank diameter tolerance h5 for precise fitment in toolholders

Compatibility

Designed for use with toolholders accepting a 4 mm straight cylindrical shank. Rated for primary workpiece material code H, denoting hard materials such as hardened steels. Part of the WALTER-PROTOTYP MC281 series.

Installation Notes

Installation is performed by qualified CNC machinists or tool-and-die technicians. The machine spindle must be fully stopped and the tool magazine or spindle cleared before inserting or removing the end mill. Secure the straight shank to the specified h5 tolerance in a compatible toolholder and verify runout before initiating a cut. Follow the toolholder manufacturer torque specifications for the clamping mechanism used.