Accupro 12181278 Square End Mill 5/32 in 2 Flute Carbide

Product Description

The ACCUPRO 12181278 is a solid carbide square end mill designed for precision milling operations in metal, composites, and hard plastics. With a 5/32-inch (0.1563-inch) mill diameter and a 1/2-inch length of cut, this tool handles slotting, profiling, and peripheral milling in tight geometries. The 2-flute configuration promotes efficient chip evacuation in softer materials and confined pockets. A 40-degree helix angle reduces cutting forces and improves surface finish. This tool is installed and used by machinists and toolroom professionals on CNC mills and manual knee mills.

This end mill is suited for light- to medium-duty milling applications where a small-diameter, short-reach tool is required. The 3/16-inch shank diameter fits standard ER collets and end mill holders. The 2-inch overall length keeps the tool rigid and minimizes deflection. Right-hand cut and right-hand flute geometry is standard for conventional and climb milling setups. Centercutting capability allows plunge entry directly into the workpiece without a pre-drilled hole.

Key Features

• Solid carbide micrograin construction for hardness and wear resistance
• 40-degree helix angle reduces cutting forces and improves finish quality
• Centercutting design allows direct plunge entry into the workpiece
• 2-flute spiral geometry promotes chip clearance in slotting and pocket milling
• Right-hand cut and right-hand flute for standard spindle rotation setups
• Uncoated finish; compatible with coolant flood or dry cutting depending on material

Compatibility

Designed for use in standard ER collet chucks and end mill holders accepting a 3/16-inch shank diameter. Suitable for CNC machining centers and manual milling machines running right-hand spindle rotation.

Installation Notes

Installation is performed by machinists using an appropriate collet or end mill holder torqued to the machine manufacturer's specification. Ensure the spindle is fully powered down and locked before changing tooling. Verify shank seating depth and runout with a dial indicator before commencing cuts. Follow machine tool manufacturer guidelines and applicable shop safety procedures when operating at elevated spindle speeds.