Accupro 12185368 Ball End Mill 0.25 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12185368 is a solid carbide ball end mill designed for precision milling operations in metal and hard material applications. This double-end tool features a 0.25-inch mill diameter with a 4-flute spiral configuration and a 40-degree helix angle. The TiCN coating provides increased surface hardness and lubricity, extending tool life in demanding cuts. With a 0.5-inch length of cut and 2.5-inch overall length, this end mill suits stub-length applications where rigidity and minimal deflection are priorities. Machinists and tool-and-die professionals use this tool in CNC machining centers and manual mills.

This ball end mill is suited for contour milling, profiling, and finishing passes on ferrous and non-ferrous workpieces. The right-hand cutting and right-hand flute direction are standard for conventional CNC setups. The double-end design extends usable tool life by providing two cutting ends per shank. The stub length classification makes it a good fit for low-clearance setups and rigid fixturing situations where a longer reach is not required.

Key Features

• 0.25-inch mill diameter with matching 0.25-inch shank diameter for direct collet or end mill holder fitment
• 4-flute spiral design with 40-degree helix angle for efficient chip evacuation and smooth surface finish
• TiCN coating increases surface hardness and reduces friction for extended tool life in steel and alloy applications
• Double-end configuration provides two usable cutting ends per tool
• Solid carbide construction delivers rigidity and wear resistance superior to HSS in hardened materials
• Stub-length classification maximizes rigidity and minimizes deflection in tight-clearance setups

Compatibility

Designed as an OEM-style replacement and standard production end mill compatible with 0.25-inch collets, ER collet chucks, and end mill holders used in CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or holder and torque the retention nut to the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cut, as excessive runout will accelerate wear on a carbide tool.