Dormer Pramet C428 6.0mm HSS-E-Powder Metal Alcrona Primax Flatted Shank Multi-Flute Roughing (HRA) Standard Length End Mill DIN 844 K

Durable 6 mm roughing end mill designed for high-efficiency metal removal in steels and alloys. This short-series cutter features an HRA asymmetrical fine-pitch profile and 4-flute geometry, optimized for shoulder milling, slot milling, and ramping.

• Diameter: 6.0 mm
• Length of cut: 13 mm
• Overall length: 57 mm
• Shank: Weldon 6 mm
• Flutes: 4
• Material and coating: HSS-E powder metallurgy with Alcrona Primax coating
• Profile: HRA asymmetrical fine pitch
• Helix angle: 35°
• Rake angle: 12°
• Standard: DIN 844 K
• Applications: shoulder milling, slot milling, and ramping
• Materials it handles: alloy and tool steel, stainless steel, cast-iron, copper or copper alloys, and high-temperature alloys

This end mill combines a robust powder-metallurgical HSS-E core with a durable Alcrona Primax coating to resist wear and maintain sharpness through demanding roughing passes. The 35° helix and 12° rake enhance chip evacuation and reduce cutting forces, contributing to steadier feeds and longer tool life even in tough alloys. The DIN 844 K specification and Weldon shank ensure reliable fitment on standard machines and secure clamping during heavy milling.