Accupro 95168603 Square End Mill 1/4 in 5 Flute Carbide

Product Description

The ACCUPRO 95168603 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining applications. Built from micrograin carbide and coated with nACRo, it delivers high hardness and heat resistance at the cutting edge. The 5-flute geometry combined with a variable helix angle reduces chatter and improves surface finish at higher feed rates. At 1/4 inch in diameter with a 3/8 inch length of cut and 2 inch overall length, this end mill is suited for slotting, profiling, and finishing passes where tight tolerances are required. Installed by machinists and CNC operators working in job shops, tool rooms, and production environments.

This end mill is used in CNC machining centers and manual milling machines for cutting ferrous and non-ferrous metals, hardened steels, and high-temperature alloys where the nACRo coating provides oxidation resistance and extended tool life. The 1/4 inch shank diameter fits standard ER collet chucks and end mill holders. It is a single-end, center-cutting tool capable of plunge entry, making it versatile for 2D and 3D contouring work in both roughing and finishing contexts. The right-hand cut and right-hand flute direction are standard for conventional CNC spindle rotation.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• nACRo coating improves heat resistance and reduces built-up edge in hard materials
• 5-flute, variable helix design reduces harmonic vibration and chatter
• Center-cutting capable — supports direct plunge entry
• Right-hand cut and right-hand spiral flute direction for standard CNC spindle use
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fitment in tight-tolerance work

Compatibility

Designed for use with standard 1/4 inch ER collet chucks, shrink-fit holders, and end mill holders commonly found on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before loading or removing the tool. Seat the shank fully into the collet or holder to the recommended gauge line depth before torquing the retention nut. Verify runout with a dial indicator after tooling changes to stay within the tolerance range required for the application.