Accupro 12183171 Corner Radius End Mill 1in 4 Flute Carbide

Product Description

The ACCUPRO 12183171 is a solid carbide corner radius end mill designed for demanding milling operations where tool rigidity and edge life are critical. It features a 1 inch cutting diameter, a 3 inch length of cut, and a 0.015 inch corner radius that reduces stress concentrations and extends tool life at the cutting edge. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. A TiCN coating adds surface hardness and lubricity, making this tool well suited for ferrous and hard materials. Machinists and tool-and-die professionals install this tool in CNC machining centers and manual mills.

This end mill is built for high-material-removal passes in production and job-shop environments. The extra-long configuration, with a 6 inch overall length and 1 inch shank diameter, provides the reach needed for deep-pocket milling and cavity work. The centercutting geometry allows plunge entry, giving operators flexibility in toolpath strategy. Right-hand flute direction and right-hand cutting orientation are standard for conventional CNC setups. The single-end design is typical for precision tooling applications where regrinding one end is the preferred maintenance approach.

Key Features

• 1 inch cutting diameter with a 0.015 inch corner radius for reduced edge chipping and improved surface finish
• TiCN coating for increased hardness and wear resistance on ferrous and abrasive materials
• 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Extra-long 6 inch overall length with 3 inch length of cut for deep-pocket and cavity milling
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Micrograin solid carbide construction for dimensional stability and edge retention

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual milling machines accepting a 1 inch straight shank end mill holder.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in a properly sized end mill holder or collet chuck, ensuring the shank engagement meets the holder manufacturer's minimum depth requirement. Verify spindle runout before beginning a cut, as excessive runout accelerates wear on carbide tooling. Always power down and lock out the spindle before changing or measuring tooling.