Accupro 14899139 Square End Mill 0.075 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 14899139 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 0.075 inch cutting diameter and a 0.225 inch length of cut, this tool handles slotting, profiling, and peripheral milling in tight-tolerance applications. The AlTiN coating improves heat resistance and tool life in high-speed dry or near-dry cutting conditions. Four flutes with a 30-degree right-hand helix promote efficient chip evacuation while delivering a fine surface finish. The micrograin carbide substrate provides the edge retention needed for consistent performance across production runs.

This end mill is suited for CNC machining centers, vertical mills, and high-speed spindle setups found in job shops, tool rooms, and production machining environments. The extended reach configuration and 0.125 inch shank diameter make it practical for accessing features in recessed or stepped workpieces. It is a single-end centercutting design, so it can be used for plunge entry as well as lateral cutting passes. Machinists working with aluminum, stainless, alloy steels, and hardened materials will find the AlTiN coating and micrograin grade appropriate for demanding cuts.

Key Features

• 0.075 inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for close-tolerance work
• AlTiN coating for elevated heat resistance and extended tool life in high-speed applications
• Micrograin solid carbide substrate for superior edge retention and rigidity
• 30-degree right-hand spiral flutes promote smooth chip flow and reduce cutting forces
• Centercutting geometry enables direct plunge entry without a pre-drilled pilot hole
• Extended reach with a 0.5 inch reach length for accessing recessed features

Compatibility

Designed as an OEM-style replacement or direct-use end mill for CNC and manual milling setups accepting a 0.125 inch round shank toolholder or collet.

Installation Notes

Installation is performed by a machinist or toolroom technician using a compatible collet, end mill holder, or shrink-fit toolholder sized to the 0.125 inch shank diameter. Verify shank runout and holder cleanliness before seating the tool to avoid premature edge wear. Confirm spindle direction is set to right-hand rotation before engaging the cut. Follow machine tool manufacturer guidelines and applicable shop safety procedures when setting cutting parameters.