Accupro 12185158 Square End Mill 1/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12185158 is a double-end, square-profile solid carbide end mill designed for precision milling in tight-tolerance machining applications. With a 1/16 inch (0.0625 inch) mill diameter and a 1/8 inch length of cut, this stub-length tool handles slotting, profiling, and finishing passes where rigidity and accuracy are essential. The micrograin carbide construction supports higher speeds and feeds compared to standard carbide grades. A 30-degree right-hand helix and four right-hand flutes promote efficient chip evacuation while maintaining a smooth cut surface. The bright, uncoated finish suits a wide range of workpiece materials without coating-compatibility concerns.

This end mill is suited for CNC machining centers and manual mills in job shops, tool rooms, and production environments. The stub-length geometry minimizes deflection during light finishing cuts and small-feature profiling. The double-end design extends tool life by providing two usable cutting ends before the tool is retired. A 1/8 inch shank diameter fits standard collet and toolholder systems commonly found in small-part machining setups. Machinists working on molds, dies, medical components, or precision instrumentation parts will find this tool appropriate for fine-detail work at micro-scale diameters.

Key Features

• 1/16 inch mill diameter with a +0.000 / -0.002 inch diameter tolerance for precision fitment
• Micrograin solid carbide construction for increased hardness and wear resistance
• Four flutes with a 30-degree right-hand spiral helix for efficient chip evacuation
• Double-end design provides two cutting ends, extending overall tool service life
• Centercutting capable, allowing plunge entry into the workpiece
• Bright/uncoated finish with stub-length geometry for maximum rigidity at small diameters

Compatibility

Designed as an OEM-style replacement and standard tooling option for 1/8 inch shank collets and toolholders used in CNC machining centers and precision manual milling machines requiring a 1/16 inch diameter square end mill.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the collet. Verify collet size matches the 1/8 inch shank diameter before tightening to avoid shank damage or runout. At micro-scale diameters, minimize overhang and confirm runout is within acceptable limits before beginning the cut.