Accupro 312357 Corner Radius End Mill 3/4 in 5 Flute

Product Description

The ACCUPRO 312357 is a solid carbide corner radius end mill designed for high-performance milling in demanding machining environments. It features a 3/4 inch diameter, a 1 inch length of cut, and a 6 inch overall length, making it well suited for extended reach applications. The 5-flute, right-hand spiral configuration runs with a variable index for improved vibration damping and surface finish. An AlCrTiN coating provides heat and wear resistance during high-speed cutting operations. The 0.030 inch corner radius reduces stress concentration at the cutting edge. Centercutting geometry allows plunge milling as part of a toolpath. Material grade is micrograin carbide for edge stability and consistency.

This end mill is intended for use in CNC machining centers and milling machines where extended reach into deep pockets or cavities is required. The 3-3/8 inch reach length and reduced neck diameter of 0.712 inches allow access past part features without tool holder interference. Typical applications include die and mold work, aerospace component machining, and precision part manufacturing where corner radius geometry is specified for stress relief or part design requirements. Single-end configuration keeps the tool compact and straightforward to preset.

Key Features

• 3/4 inch mill diameter with 0.030 inch corner radius for edge strength and reduced stress risers
• 5-flute, right-hand spiral with variable index for chatter reduction and improved finish
• AlCrTiN coating for high-temperature wear resistance in ferrous and hardened materials
• Solid micrograin carbide substrate for consistent edge integrity and rigidity
• Extended reach design: 3-3/8 inch reach length with 0.712 inch neck diameter
• Centercutting capable — supports plunge entry and full toolpath flexibility

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC milling applications requiring a 3/4 inch shank and extended reach geometry in the HS series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the 3/4 inch shank in a compatible end mill holder or collet chuck, ensuring proper engagement depth per holder manufacturer specifications. Verify runout at the cutting edge before beginning a production run. Follow machine tool manufacturer guidelines and applicable shop safety procedures when handling carbide tooling.