Accupro 14797189 Square End Mill 0.04 in 3 Flute Carbide

Product Description

The ACCUPRO 14797189 is a solid carbide square end mill designed for precision milling in tight-tolerance applications. With a 0.04 inch cutting diameter and a 0.0625 inch length of cut, this tool is built for micro-scale profiling, slotting, and contour work. The three-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation while maintaining rigidity in the cut. Micrograin carbide construction delivers the hardness and edge retention required for abrasive materials and fine-feature machining. The 0.125 inch shank diameter and 2.5 inch overall length make it compatible with standard collet toolholders used in CNC machining centers.

This end mill is suited for use on CNC machining centers and precision milling machines in job shops, production facilities, and toolroom environments. The centercutting geometry allows for direct plunge entry, making it effective for pocketing and slot-entry operations. Extended reach geometry supports access to recessed features. It is commonly used on non-ferrous metals, plastics, graphite, and similar materials where fine detail and close tolerances are required. A machinist or CNC operator would typically run this tool in high-speed, low-chip-load conditions appropriate for its micro diameter.

Key Features

• 0.04 inch cutting diameter with micrograin solid carbide construction for edge retention and rigidity
• 3-flute right-hand spiral configuration with 30-degree helix angle for controlled chip flow
• Centercutting design allows direct plunge entry for pocketing and slot operations
• Extended reach geometry with 0.12 inch reach length for access to recessed features
• Uncoated finish suitable for applications where coating is not required or where re-sharpening is anticipated
• Mill diameter tolerance of +0.0000 / -0.0010 inches for consistent, repeatable results

Compatibility

Designed as an OEM-style replacement or standard tooling option for CNC machining centers and precision milling machines accepting a 0.125 inch shank diameter collet or toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool path program is verified before mounting. Secure the 0.125 inch shank in a clean, properly sized collet or end mill holder and verify runout with a dial indicator before commencing a cut. Micro-diameter end mills are susceptible to breakage from excessive chip load, tool deflection, or improper feed and speed selection — always consult the manufacturer cutting data guidelines for this diameter range.