Accupro 2500238 Square End Mill 5/16 in 3 Flute Carbide

Product Description

The ACCUPRO 2500238 is a double-end, solid carbide square end mill designed for precision milling operations in metal, composites, and other hard materials. With a 5/16-inch mill diameter and 7/16-inch length of cut, this stub-length tool delivers rigidity and reduced deflection in tight-reach applications. The 3-flute, right-hand spiral geometry with a 60-degree helix angle promotes aggressive chip evacuation and efficient cutting at higher feed rates. Micrograin carbide construction provides hardness and wear resistance across a range of workpiece materials. The bright/uncoated finish is suitable for general-purpose milling where coating-related heat buildup is a concern.

This end mill is suited for use in CNC machining centers, vertical mills, and manual milling setups where a stub-length tool is preferred for increased rigidity. The double-end configuration extends tool life by providing two usable cutting ends. Typical applications include slotting, profiling, and peripheral milling in ferrous and non-ferrous materials. The centercutting design allows plunge entry into workpieces without pre-drilling. This tool is installed and operated by machinists and toolroom professionals working in job shops, production machining, and maintenance environments.

Key Features

• Double-end design provides two cutting ends, extending usable tool life
• 60-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Micrograin solid carbide construction delivers hardness and dimensional stability
• Centercutting geometry allows direct plunge entry without pilot hole
• Stub-length classification reduces deflection in short-reach milling applications
• Right-hand cut and right-hand flute direction compatible with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-fit cutting tool for standard 5/16-inch collet or end mill holder tooling systems used in CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank in a properly sized collet, end mill holder, or set-screw holder, verifying that runout is within acceptable limits before cutting. Inspect both cutting ends for chipping or wear before use and do not exceed the tool manufacturer recommended depth-of-cut for the workpiece material.