Accupro 14797275 Square End Mill 0.09in 3 Flute Carbide

Product Description

The ACCUPRO 14797275 is a solid carbide square end mill designed for precision milling operations in metal, composites, and hard materials. The cutter measures 0.09 inches in diameter with a 0.75-inch length of cut and a 2.5-inch overall length. It features three flutes in a right-hand spiral configuration with a 30-degree helix angle, promoting efficient chip evacuation and smooth cutting action. The micrograin carbide construction provides the hardness and edge retention required for tight-tolerance work. This is a single-end, centercutting tool with a bright, uncoated finish, suitable for applications where a coating is not required or where coating buildup would affect dimensional accuracy.

This end mill is suited for use in CNC machining centers, vertical mills, and manual knee mills in job shop, production, and maintenance-repair environments. The extended reach design, with a 1.25-inch reach length, allows access to deeper pockets and stepped features without requiring specialty tooling. The 1/8-inch shank diameter fits standard collets and tool holders used in small-bore spindle applications. Machinists, toolmakers, and CNC operators working with aluminum, brass, mild steel, and similar materials will find this cutter appropriate for slotting, profiling, and light pocketing operations.

Key Features

• 0.09-inch cutting diameter with mill diameter tolerance of +0.0000 / -0.0010 inches for consistent dimensional output
• Three right-hand spiral flutes with 30-degree helix for effective chip removal
• Micrograin solid carbide construction for edge retention and rigidity in harder materials
• Centercutting geometry allows direct plunge entry into workpiece
• Extended reach of 1.25 inches provides clearance for deeper pocket milling
• Bright, uncoated finish — no coating thickness to account for in tight-tolerance fits
• Single-end design; replace when worn rather than flip

Compatibility

Designed for use with standard 1/8-inch collets and tool holders. Fits CNC machining centers and manual mills equipped for small-diameter end mill tooling. Verify spindle collet range and RPM capability before use at this diameter.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the spindle is fully powered down and the machine is in a safe, locked-out state before loading or unloading the tool. Seat the shank fully and evenly in the collet to the recommended engagement depth to prevent runout and tool pull-out. At 0.09 inches diameter, this tool is sensitive to excessive feed rates and side loads — verify feeds and speeds against the material being cut before starting the operation.