Accupro 14796283 Corner Radius End Mill 1/4 in 3 Flute

Product Description

The ACCUPRO 14796283 is a solid carbide corner radius end mill designed for precision milling in tight-tolerance applications. It features a 1/4 inch diameter with a 0.03 inch corner radius, a 3/8 inch length of cut, and a 4 inch overall length. The three-flute, right-hand spiral design paired with an AlTiN coating delivers heat resistance and extended tool life when cutting hardened steels, stainless, and high-temperature alloys. The centercutting geometry allows plunge entry, and the extended reach configuration supports deep-pocket work in confined setups. This tool is sized within the Miniature Series and is intended for use by machinists and tooling professionals in CNC machining centers.

This end mill is suited for finishing and semi-finishing operations in industries where fine surface finish and dimensional accuracy are critical. The Miniature Series sizing makes it appropriate for small-feature milling, die and mold work, and aerospace or medical component machining. The single-end construction and 1/4 inch shank diameter fit standard collet chucks and toolholders used in vertical and horizontal CNC machining centers. The 30-degree helix angle supports efficient chip evacuation during right-hand cutting passes.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating provides thermal protection and extends tool life in hard and abrasive materials
• 0.03 inch corner radius reduces stress concentration and improves edge strength on workpiece corners
• Centercutting design allows direct plunge milling without a pre-drilled pilot hole
• Extended reach with 1.25 inch reach length supports deep-pocket and clearance-restricted setups
• Three-flute, right-hand spiral geometry balances chip removal and finish quality

Compatibility

Designed for use in standard 1/4 inch collet chucks and toolholders on CNC vertical and horizontal machining centers. Shank diameter tolerance of -0.0001 to -0.0003 inches ensures consistent runout performance in precision toolholders.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully powered down and the tool changer is disabled before changing tooling. Seat the shank fully into the collet or toolholder and torque the retention nut to the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a cut, particularly given the extended reach on this tool.