Accupro 12182570 Square End Mill 0.4331 in 4 Flute Carbide

Product Description

The ACCUPRO 12182570 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.4331-inch mill diameter and a 0.9843-inch length of cut, this tool delivers controlled material removal in a regular-length profile. The 4-flute, 40-degree spiral helix geometry promotes efficient chip evacuation and smooth cutting action. Manufactured from micrograin solid carbide, the 12182570 holds tight tolerances and resists wear under demanding cutting conditions. It is uncoated and ready for use in a wide range of ferrous and non-ferrous milling operations performed by machinists and toolroom professionals.

This end mill is suited for slotting, profiling, and peripheral milling in CNC machining centers and manual mills. The centercutting design allows plunge entry without a pre-drilled hole. Right-hand cut and right-hand flute configuration is standard for conventional spindle setups. The 0.4331-inch diameter corresponds to an 11.00 mm metric equivalent, making it compatible with both inch-based and metric toolholding setups. The 12.00 mm shank diameter fits standard ER collets and milling chucks commonly used in production and job-shop environments.

Key Features

• Micrograin solid carbide construction for extended tool life and dimensional stability
• 4-flute, 40-degree helix spiral flute for efficient chip flow and surface finish
• Centercutting geometry allows direct plunge milling without a pilot hole
• Right-hand cut, right-hand flute for use with standard CNC and manual spindles
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and runout control
• Uncoated finish suitable for use with cutting fluids across a broad range of workpiece materials

Compatibility

Designed as a standard square end mill for use in CNC machining centers, knee mills, and toolroom machines equipped with toolholders accepting a 12.00 mm shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder torque and runout verification. Ensure the spindle is fully stopped and the machine is in a safe lockout state before changing tooling. Verify shank engagement depth meets the minimum recommended by the toolholder manufacturer to prevent pullout under load. Confirm shank diameter tolerance compatibility with the collet or chuck before mounting.