Accupro 12185316 Ball End Mill 0.3125 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12185316 is a double-end ball end mill designed for precision milling operations in metal fabrication and machining shops. Built from solid carbide, it delivers the rigidity and wear resistance required for demanding cutting applications. The 0.3125 inch diameter cutter features four flutes with a 40-degree helix angle and right-hand cutting and flute direction, producing efficient chip evacuation and a clean finish in ferrous and non-ferrous materials. With a 0.75 inch length of cut and 3.0 inch overall length, it is well suited for profiling, contouring, and slotting tasks where consistent tool geometry is critical.

This end mill is used in CNC machining centers and manual milling machines across job shops, tool-and-die operations, and production environments. The double-end configuration provides two usable cutting ends, extending the service life of the tool before replacement is required. The uncoated solid carbide construction is appropriate for dry or flood-cooled cutting in a range of materials. A 3/8 inch shank diameter fits standard collet chucks and end mill holders commonly found in vertical and horizontal machining setups.

Key Features

• Solid carbide construction for high rigidity and extended tool life
• Double-end design provides two cutting ends per tool
• 4-flute spiral geometry with 40-degree helix angle for efficient chip removal
• Right-hand cutting and flute direction for standard CNC and manual mill setups
• 0.3125 inch diameter with 0.75 inch length of cut suits profiling and slotting applications
• Uncoated finish compatible with a wide range of cutting fluid strategies

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide ball end mill for CNC machining centers and manual mills accepting a 3/8 inch shank diameter collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the 3/8 inch shank fully within the collet or tool holder to the recommended engagement depth before tightening. Verify spindle runout is within acceptable limits prior to cutting to avoid premature tool wear. Always confirm the machine is in a safe, powered-down state when loading or unloading tooling.