Accupro 95168427 Square End Mill 1 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 95168427 is a solid carbide square end mill designed for high-performance milling in demanding machining environments. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it handles elevated cutting temperatures and abrasive materials without rapid edge breakdown. The 1-inch cutting diameter pairs with a 2-inch length of cut, a 1-inch shank diameter, and a 4-inch overall length. Four flutes and a variable helix geometry work together to reduce harmonic vibration, improve chip evacuation, and maintain surface finish consistency across a range of feed rates and materials. Centercutting capability allows plunge entry without a pre-drilled starting hole.

This end mill is suited for milling steel, stainless steel, cast iron, and other ferrous alloys in production machining and toolroom applications. The AlTiN coating extends tool life in dry or minimal-lubricant cutting conditions where heat buildup would otherwise degrade uncoated carbide. It is a single-end, right-hand cut, right-hand spiral tool with a regular length classification, making it a standard workhorse for roughing and finishing passes on vertical machining centers and CNC milling machines. Machinists and tool-and-die professionals working in job shops, aerospace, and industrial manufacturing will find this geometry applicable across a broad range of milling operations.

Key Features

• AlTiN coating provides high-heat resistance and extended tool life in ferrous machining
• Variable helix flute geometry reduces chatter and vibration during cuts
• Micrograin solid carbide construction for rigidity and edge retention
• Centercutting design allows direct plunge entry without pilot drilling
• Right-hand cut and right-hand spiral for standard CNC milling setups
• Four-flute configuration balances chip clearance with surface finish quality

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC vertical machining centers and manual knee mills accepting a 1-inch straight shank end mill.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the spindle fully stopped and the machine placed in an e-stop or lockout state per facility safety procedures. Use a calibrated tool holder and collet or end mill holder rated for the 1-inch shank diameter to ensure proper runout control. Verify tool projection and overhang before beginning a cut, as excessive unsupported length increases deflection risk. Always confirm feed rate, spindle speed, and depth of cut parameters against published cutting data for the workpiece material before engaging the tool.