Accupro 14556392 Square End Mill 1/4 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 14556392 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. With a 0.25-inch mill diameter, a 1.5-inch length of cut, and a 4-inch overall length, this tool falls into the extra-long category for extended reach in deeper workpiece features. The AlTiN+ coating improves heat resistance and tool life in ferrous and hardened materials. The 40-degree helix angle and spiral flute geometry promote efficient chip evacuation. Micrograin carbide construction delivers the rigidity and edge retention required for demanding cuts in production and job-shop environments.

This end mill is suited for vertical milling machines and CNC machining centers where a 0.25-inch straight cylindrical shank is compatible with the spindle tooling. The extra-long configuration makes it appropriate for slotting, profiling, and side milling in deep cavities or tall workpieces where a standard-length tool cannot reach. It is intended for use by machinists and CNC operators working with ferrous metals, stainless alloys, and similar materials that benefit from an AlTiN+ coated tool. The centercutting design allows plunge entry directly into the workpiece.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN+ coating for elevated heat resistance and extended tool life
• 40-degree helix angle with spiral flute geometry for efficient chip evacuation
• Centercutting design enables direct plunge entry
• Right-hand cut, right-hand flute configuration
• Extra-long length type with 1.5-inch length of cut for deep-feature access

Compatibility

Designed as a direct-fit replacement or new installation for CNC machining centers and manual mills using a 0.25-inch straight cylindrical shank toolholder. Series 6/44 designation applies to this product family.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the straight cylindrical shank fully within the collet or toolholder to the manufacturer-recommended engagement depth before tightening. Verify spindle speed and feed rate against the tool geometry and workpiece material before initiating a cut. Inspect the cutting edges for chipping or wear before each use and replace if edge condition is degraded.