Harvey Tool 888478 Square End Mill 5/64 in 3 Flute Carbide

Product Description

The HARVEY TOOL 888478 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 5/64 inch (0.0781 inches) cutting diameter, a 5/16 inch (0.3120 inches) length of cut, and a 1/8 inch (0.1250 inches) shank diameter, with an overall length of 2.5 inches. The three-flute geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Uncoated solid carbide construction delivers rigidity and wear resistance suited for close-tolerance finish work. This tool is single-end, centercutting, and runs right-hand cut with right-hand flute direction.

This end mill is suited for light-duty slot milling, profiling, and contouring in ferrous and non-ferrous materials where a small-diameter tool is required. The centercutting capability allows plunge entry, making it practical for pocketing operations without a pre-drilled entry point. The compact 5/64 inch diameter makes it a go-to choice for fine detail work, narrow slots, and intricate contours in CNC machining centers and manual mills. Machinists working on small components, mold cavities, or tight-geometry features will find this tool appropriate for those applications.

Key Features

• Solid carbide construction for rigidity and extended tool life in precision milling
• 5/64 inch cutting diameter with 5/16 inch length of cut for fine detail and narrow slot work
• 3-flute design with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge entry without pre-drilling
• Right-hand cut and right-hand flute direction; compatible with standard CNC and manual mill spindles
• Uncoated finish suitable for a range of base materials without coating-related adhesion concerns

Compatibility

Designed as a standard shank solid carbide square end mill with a 1/8 inch shank diameter, compatible with collets and tool holders sized for 1/8 inch round shanks on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully powered down and at rest before loading or removing the tool from the collet or tool holder. Use a calibrated torque wrench and the collet manufacturer specifications when tightening the tool holder to avoid runout. Verify tool stick-out and runout with a dial indicator before beginning any cutting operation to protect both the tool and the workpiece.