Accupro 313615 Ball End Mill 5/16 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 313615 is a solid carbide ball end mill designed for precision milling operations in metal, composites, and hard materials. It features a 5/16 inch (0.3125 inch) cutting diameter and a 1-1/4 inch length of cut, making it suited for profiling, contouring, and slotting tasks where a full-radius end geometry is required. The 2-flute configuration and 45-degree right-hand helix promote efficient chip evacuation and smooth cutting action. Manufactured from micrograin solid carbide, this tool holds tight tolerances and delivers consistent edge integrity. It ships with a bright/uncoated finish, which is appropriate for general-purpose cutting where coating is not required. Machinists, toolroom operators, and CNC programmers rely on this profile for 3D surface work and cavity milling.

This end mill is intended for use in vertical machining centers, knee mills, and CNC milling machines where a single-end ball nose tool is specified. Its right-hand cutting direction suits standard spindle setups. The 5/16 inch shank diameter fits standard collets and end mill holders common in both manual and CNC machining environments. With a 3 inch overall length, it provides reach suitable for moderate-depth cavity work without excessive overhang. Typical applications include die and mold work, contoured surface finishing, and precision slot profiling in ferrous and non-ferrous materials.

Key Features

• Solid micrograin carbide construction for edge retention in demanding cuts
• 45-degree right-hand helix promotes chip flow and reduces cutting forces
• 2-flute design supports slotting and profiling with efficient evacuation
• Ball nose geometry enables full-radius profiling and 3D contouring
• Bright/uncoated finish for general-purpose milling applications
• Single-end configuration with matched 5/16 inch shank and cutting diameter

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC and manual milling machines accepting a 5/16 inch shank diameter end mill holder or collet.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing tooling. Seat the shank fully in the collet or holder to the recommended engagement depth before tightening. Verify runout with an indicator before production cuts to confirm proper seating and holder condition.