Accupro 95168249 Square End Mill 1/4 in 5 Flute Carbide

Product Description

The ACCUPRO 95168249 is a single-end square end mill designed for milling operations in metals and other hard materials. Built from micrograin solid carbide and finished with an AlTiN (aluminum titanium nitride) coating, this tool handles high-heat cutting applications where tool life and edge retention matter. It features 5 flutes arranged in a right-hand spiral with a 45-degree helix angle, which promotes efficient chip evacuation and surface finish quality. The 1/4-inch diameter and 3/4-inch length of cut make it well suited for slot milling, profiling, and contouring in tight geometries. Centercutting capability allows plunge entry without a pre-drilled pilot hole.

This end mill is used in CNC machining centers and manual milling machines for ferrous and non-ferrous metal cutting, including hardened steels, stainless, and titanium alloys where AlTiN coating provides oxidation resistance at elevated cutting temperatures. The regular-length geometry fits standard tool holders and collet chucks using a 1/4-inch shank. It is suited to production shops, tool rooms, and maintenance machining environments where precision and repeatability are required.

Key Features

• Micrograin solid carbide substrate for rigidity and wear resistance
• AlTiN coating provides high-temperature oxidation resistance for dry or semi-dry cutting
• 5-flute design increases feed rate potential compared to 4-flute equivalents
• 45-degree right-hand helix promotes chip flow and reduces cutting forces
• Centercutting geometry allows direct plunge entry
• Mill diameter tolerance of +0.000 / -0.002 inches for controlled fit in tight slots

Compatibility

Designed as a direct-fit replacement or standard-spec end mill for CNC machining centers and knee mills using 1/4-inch collet chucks or end mill holders with a 1/4-inch bore.

Installation Notes

This tool is installed and serviced by machinists and CNC operators. Ensure the spindle is fully stopped and machine is in an e-stop or locked-out state before inserting or removing end mills from the holder. Verify collet size matches the 1/4-inch shank diameter and that the tool is seated to the correct gauge line depth before tightening. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.