Accupro 12177378 Corner Radius End Mill 8mm 2 Flute Altin

Product Description

The ACCUPRO 12177378 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features an 8 mm cutting diameter, a 1 mm corner radius, and a 2-flute, right-hand spiral configuration. The AlTiN coating provides heat resistance and extended tool life in high-temperature cutting conditions. With a 30-degree helix angle and centercutting capability, this end mill handles slotting, profiling, and plunge operations. It is a single-end tool with a micrograin carbide substrate for edge retention in demanding ferrous and non-ferrous applications. Licensed machinists and CNC operators are the primary users of this tool.

This end mill is suited for CNC machining centers and manual milling machines requiring a corner radius profile to reduce stress concentrations in pocket corners and stepped features. The extended reach design, with a 25 mm reach length, allows access to deeper features without interference. It is commonly applied in die and mold work, aerospace component machining, and general precision part production where sharp internal corners must be avoided. The right-hand cutting direction is standard for conventional and climb milling setups.

Key Features

• 8 mm cutting diameter with 8 mm length of cut for controlled depth engagement
• 1 mm corner radius reduces stress risers in milled pockets and profiles
• AlTiN coating for elevated heat resistance and extended tool life in hard materials
• Centercutting design enables direct plunge entry without pre-drilling
• 30-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Micrograin solid carbide substrate for superior edge retention and dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 8 mm collet or end mill holders on CNC machining centers and manual milling machines.

Installation Notes

Installation requires a properly sized collet or end mill holder with a matching 8 mm shank bore. Confirm runout on the spindle and holder before engaging the tool in cut, as excessive runout accelerates edge wear on carbide tooling. Follow machine tool manufacturer torque specifications when tightening the tool holder. Inspect the cutting edges for chipping or coating wear before each use and replace the tool when diameter tolerance or edge condition falls outside acceptable limits.