Accupro 315250 Ball End Mill 3/8 in 3 Flute Solid Carbide

Product Description

The ACCUPRO 315250 is a single-end ball end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin solid carbide, this tool delivers the rigidity and edge retention required for demanding cuts in ferrous and non-ferrous materials. The 3/8 inch cutting diameter and 1 inch length of cut allow for contouring, profiling, and pocket milling in tight geometries. A ZrN (zirconium nitride) coating reduces friction and extends tool life in dry and semi-dry cutting conditions. The 37-degree right-hand spiral helix promotes efficient chip evacuation, while the 3-flute configuration balances chip load with surface finish. This tool is installed and used by machinists, tool-and-die makers, and CNC operators.

The ACCUPRO 315250 is suited for use in CNC machining centers and manual milling machines where 3/8 inch shank tooling is required. Typical applications include 3D contouring, finishing passes, and profiling cuts in aluminum, steel, stainless steel, and similar machinable materials. The single-end design and solid carbide construction make it a direct-fit replacement in standard end mill holders and collet chuck setups used in job shop and production environments.

Key Features

• Micrograin solid carbide construction for high rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in dry cutting conditions
• 37-degree right-hand helix angle promotes efficient chip evacuation
• 3-flute design balances material removal rate with surface finish quality
• Tight mill diameter tolerance of +0.000 / -0.002 inches ensures dimensional accuracy
• Single-end configuration for standard end mill holder and collet chuck compatibility

Compatibility

Designed for use in standard 3/8 inch end mill holders, collet chucks, and shrink-fit tooling systems commonly found on CNC vertical machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is in a safe lockout state before changing tooling. Seat the shank fully in the holder to the recommended gauge line depth and torque the retention mechanism per the toolholder manufacturer specification. Inspect the cutting edges for chips or damage before each use.