Accupro 12181877 Corner Radius End Mill 1 in 3 Flute Ticn

Product Description

The ACCUPRO 12181877 is a solid carbide corner radius end mill designed for precision milling in ferrous and non-ferrous metals. It features a 1 inch cutting diameter, a 1-3/4 inch length of cut, and a 0.09 inch corner radius that reduces stress concentrations at part edges and extends tool life in demanding applications. The TiCN coating adds hardness and wear resistance, making this tool well-suited to high-feed machining in abrasive materials. With three flutes and a right-hand spiral flute direction, it delivers effective chip evacuation and smooth surface finish. Licensed machinists and toolroom technicians are the primary installers and operators of this tool.

This end mill is used in vertical and horizontal CNC machining centers as well as manual knee mills for profiling, slotting, and contouring operations. It is particularly effective in applications requiring a controlled radius at the base of a feature — such as pocketing and shoulder milling — where sharp corners would create stress risers. The single-end, centercutting configuration allows plunge entry as well as lateral cutting, broadening its utility in production and job-shop environments.

Key Features

• TiCN coating provides elevated hardness and abrasion resistance for extended tool life in ferrous materials
• 0.09 inch corner radius reduces edge chipping and part stress concentrations
• Centercutting design enables direct plunge entry without a pre-drilled start hole
• Micrograin solid carbide substrate supports high rigidity and precise dimensional control
• Three-flute, right-hand spiral geometry balances chip clearance with cutting efficiency
• 40-degree helix angle promotes smooth cutting action and reduced vibration

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC machining centers and manual mills accepting a 1 inch straight shank.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Ensure the machine spindle and tool holder are clean and free of debris before seating the shank. Torque the collet or end mill holder to the tool holder manufacturer's specification. Verify runout with a dial indicator before commencing cuts, and confirm that spindle speed and feed rate are set to values appropriate for the workpiece material and coating type before engaging the cut.