Accupro 12185163 Square End Mill 5/64 in 4 Flute Carbide

Product Description

The ACCUPRO 12185163 is a double-end, four-flute square end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin solid carbide and finished with an AlTiN (aluminum titanium nitride) coating, it handles high-temperature cutting environments where tool life and dimensional accuracy matter. The 0.0781 inch (5/64 inch) cutting diameter and 0.1563 inch (5/32 inch) length of cut place this tool in the micro-end-mill category, suited to fine-detail work in molds, dies, and tight-tolerance machined components. The 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Machinists and toolmakers installing this tool will find the stub length profile adds rigidity in shallow-pocket operations.

This end mill is intended for CNC machining centers and manual mills where small-diameter, high-precision cuts are required. The double-end configuration doubles usable tool life before replacement, making it a practical choice for production environments running repeated passes on hardened steels, stainless alloys, or exotic metals where AlTiN coating delivers its best performance. The 1/8 inch shank diameter fits standard collets and tool holders common in benchtop CNC setups and full-size vertical machining centers alike.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance in demanding materials
• AlTiN coating extends tool life in high-heat, dry, or semi-dry cutting conditions
• Double-end design provides two usable cutting ends per tool
• 30-degree right-hand spiral flutes promote chip evacuation and reduce cutting pressure
• Center-cutting geometry allows plunge entry without a pre-drilled pilot hole
• Stub length (0.1563 inch LOC) maximizes stiffness and minimizes deflection at small diameters

Compatibility

Designed as an OEM-style replacement or direct tooling selection for CNC machining centers and manual milling machines equipped with 1/8 inch collets or tool holders accepting a 0.125 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard toolroom practices. Ensure the spindle is fully stopped and the machine is in a locked-out, de-energized state before loading or unloading the tool. Seat the shank fully in the collet or tool holder to the recommended grip depth and torque the retention nut per the tool holder manufacturer specification. At this diameter, avoid excessive runout in the spindle or collet, as even minor TIR (total indicator runout) will accelerate wear and risk tool fracture.