Accupro 311796 Corner Radius End Mill 3/4 in 5-flute

Product Description

The ACCUPRO 311796 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 3/4-inch diameter with a 0.250-inch corner radius and a 5-flute, right-hand spiral configuration with a variable index for improved chip evacuation and reduced chatter. The 38-degree helix angle promotes smooth cutting action across a range of ferrous and non-ferrous materials. An AlCrTiN coating provides high heat resistance and extended tool life in demanding cutting conditions. This is a single-end, centercutting tool capable of plunge entry, making it suitable for slotting, profiling, and pocket milling. Machinists and CNC operators in job shops, aerospace, and precision manufacturing install and apply this type of end mill.

This end mill is built for use in CNC machining centers and manual milling machines where a corner radius profile is required to reduce stress concentrations in milled pockets and contoured features. The 1.625-inch length of cut and 4-inch overall length make it well suited for moderate-depth milling passes in steel, stainless steel, titanium, and similar hard materials. The micrograin solid carbide construction supports high-speed and high-feed applications where tool rigidity and edge retention are critical. A 3/4-inch shank diameter allows direct collet or end mill holder mounting in standard tooling systems.

Key Features

• 3/4-inch mill diameter with 0.250-inch corner radius for stress-reducing edge profiles
• 5-flute variable-index design reduces harmonic vibration during high-speed cuts
• AlCrTiN coating delivers high thermal resistance and extended edge life in hard materials
• Solid micrograin carbide construction for rigidity and wear resistance
• Centercutting geometry allows direct plunge entry without pre-drilling
• 38-degree helix angle promotes efficient chip flow and smooth surface finish

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting a 3/4-inch shank end mill in ER, CAT, BT, or HSK toolholders.

Installation Notes

This end mill is installed and changed by machinists following shop safety procedures and machine lockout/tagout protocols. The spindle must be fully stopped and the machine powered down before tool changes. Use a calibrated torque wrench and appropriate collet or end mill holder to secure the shank to the manufacturer-recommended clamping specification for your toolholding system. Inspect the cutting edges for chipping before each use and discard or regrind the tool if edge damage is observed.