Accupro 95168788 Square End Mill 5/16 in 5 Flute Carbide

Product Description

The ACCUPRO 95168788 is a solid carbide square end mill designed for precision metal removal in demanding milling applications. Built from micrograin carbide stock and finished with a nACRo coating, this tool delivers heat and wear resistance suited to harder workpiece materials. The 5-flute geometry combined with a variable helix angle reduces chatter and harmonic vibration during cut, improving surface finish and tool life. With a 5/16-inch cutting diameter and 7/16-inch length of cut, it is sized for slotting, profiling, and finishing passes in tight-tolerance work. Right-hand cut and right-hand flute direction are standard. The tool is centercutting, allowing plunge entry.

This end mill is intended for use in CNC machining centers, vertical mills, and manual knee mills where solid carbide tooling is specified. It suits applications in alloy steels, stainless steel, hardened materials, and similar workpiece families where the nACRo coating provides a measurable advantage over uncoated or TiN-coated tools. Single-end configuration means the tool is replaced rather than indexed when the cutting edge is worn. Machinists, toolroom operators, and CNC programmers in job shops and production environments are the primary users.

Key Features

• 5-flute design increases chip load capacity and feed rate potential compared to 4-flute equivalents at this diameter
• Variable helix geometry reduces chatter and vibration during long-duration cuts
• nACRo coating provides elevated hot hardness and oxidation resistance for harder workpiece materials
• Micrograin carbide substrate supports sharp edge retention and resistance to micro-chipping
• Centercutting capable — supports plunge milling without a pre-drilled entry hole
• Right-hand cut and right-hand spiral flute direction for standard spindle setups

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard 5/16-inch collet or end mill holder setups on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully into a collet, end mill holder, or shrink-fit toolholder to the manufacturer-recommended engagement depth before tightening. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Do not exceed the tool's specified length-of-cut range when programming axial depth of cut.