Accupro 12182574 Square End Mill 29/64 in 4 Flute Carbide

Product Description

The ACCUPRO 12182574 is a solid carbide square end mill designed for precision milling operations in metal and composite materials. It features a 29/64-inch (0.4531 inches) cutting diameter with a 4-flute, spiral flute geometry and a 40-degree helix angle that promotes efficient chip evacuation and smooth surface finishes. The micrograin carbide construction provides rigidity and wear resistance suited to demanding cutting applications. This is a single-end, centercutting tool, meaning it can be used for plunge cuts as well as peripheral and slot milling. It ships uncoated and is intended for professional machinists and toolroom applications.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills where a regular-length, right-hand cut tool is required. The 1/2-inch shank diameter fits standard ER collet chucks, end mill holders, and Weldon-style tool holders commonly found in production and job shop environments. The 1-inch length of cut and 3-inch overall length make it appropriate for general-purpose slotting, profiling, and contouring at moderate depths of cut.

Key Features

• 29/64-inch (0.4531 inches) cutting diameter with mill diameter tolerance of +0.000 / -0.002 inches for consistent fit
• 4-flute spiral geometry with 40-degree helix angle for improved chip flow and surface finish
• Micrograin solid carbide construction for rigidity and extended tool life
• Centercutting design allows plunge milling in addition to lateral cuts
• Right-hand cut and right-hand flute configuration — standard orientation for most CNC and manual setups
• Uncoated finish — suitable for applications where coating is not required or where regrinding is planned

Compatibility

Designed as a standard-shank square end mill compatible with 1/2-inch end mill holders, ER collet chucks, and Weldon-style holders used in CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's tooling guidelines. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Confirm runout at the shank using a dial indicator before beginning cuts, as shank diameter tolerance is -0.0001 / -0.0004 inches. Tool overhang should be minimized to reduce deflection and chatter during operation.