Accupro 12183385 Corner Radius End Mill 3/4 in 4 Flute

Product Description

The ACCUPRO 12183385 is a solid carbide corner radius end mill designed for high-performance milling in demanding metalworking applications. It features a 3/4-inch diameter with a 3-inch length of cut, a 0.02-inch corner radius, and four flutes ground from micrograin carbide stock. The AlTiN coating provides heat resistance and extended tool life when cutting hardened steels, stainless, and high-temperature alloys. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. With a 6-inch overall length and extra-long reach classification, this tool handles deep-pocket and extended-reach milling operations that standard-length end mills cannot reach.

This end mill is suited for CNC machining centers and manual knee mills in production shops, tool rooms, and job shops. The single-end, centercutting design allows plunge entry as well as peripheral and slot milling. The extra-long length type makes it particularly useful for deep cavity work in mold and die machining, aerospace components, and precision part manufacturing where extended reach into a workpiece is required.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN coating for elevated-temperature performance and extended tool life
• 0.02-inch corner radius reduces stress concentration and improves surface finish at floor radii
• 40-degree right-hand helix for efficient chip evacuation
• Centercutting design allows direct plunge entry
• Extra-long 6-inch OAL with 3-inch LOC for deep-pocket and extended-reach applications

Compatibility

Designed for use in CNC machining centers and manual mills with ER or end mill holders accepting a 3/4-inch straight shank. Suitable for cutting ferrous and non-ferrous metals including hardened steels and high-temperature alloys.

Installation Notes

This tool should be installed by a qualified machinist or CNC setup technician. Ensure the spindle and tool holder are clean and free of debris before seating the shank. Verify runout with a dial indicator before commencing cuts; excessive runout accelerates wear on carbide tooling. Follow the machine tool manufacturer's recommended torque values for the collet or end mill holder nut.