Accupro 311358 Square End Mill 1/8 in 5 Flute Solid Carbide

Product Description

The ACCUPRO 311358 is a solid carbide square end mill designed for precision metal removal in demanding machining applications. With a 1/8 inch cutting diameter and five spiral flutes, this single-end mill delivers smooth chip evacuation and reduced cutting forces at tight tolerances. An AlTiCrN coating provides high heat resistance and extended tool life in hard and abrasive materials. The 38-degree helix angle promotes efficient chip flow and helps minimize chatter. This tool is sized for use in CNC machining centers, vertical mills, and toolroom equipment where small-diameter, high-performance cutting is required.

The 311358 suits applications in ferrous and non-ferrous metals where a small-diameter end mill with aggressive flute geometry is needed. The 1/2 inch length of cut and 2 inch overall length make it practical for shallow-to-moderate depth profiling, slotting, and contouring in production or toolroom environments. The variable index feature helps suppress harmonics during high-speed passes. Machinists working in aerospace, die and mold, and general precision machining will find this geometry well matched to tight-pocket and fine-detail work.

Key Features

• 1/8 inch cutting diameter with matching 1/8 inch shank diameter for direct collet fit
• Five spiral flutes with variable index for vibration reduction and improved surface finish
• AlTiCrN coating for elevated heat resistance and extended wear life in hard materials
• 38-degree helix angle promotes efficient chip evacuation and reduced cutting forces
• Centercutting design allows plunge entry without a pre-drilled hole
• Micrograin solid carbide construction provides rigidity and edge retention in demanding cuts

Compatibility

Designed as a standard 1/8 inch shank square end mill compatible with collet chucks, ER collet systems, and other 1/8 inch tool-holding setups on CNC and manual milling equipment. Part of the ACCUPRO HS Series.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's guidelines. Ensure the spindle is fully stopped and the machine is powered down or in a safe state before changing tooling. Use a properly sized and clean collet or chuck to achieve the manufacturer-recommended runout tolerance. Confirm tool reach and stick-out are minimized to maintain rigidity and avoid deflection during cutting.