Harvey Tool 37847-C6 Ball End Mill 3/64 in 2 Flute Carbide

Product Description

The HARVEY TOOL 37847-C6 is a solid carbide ball end mill engineered for finishing operations in hardened steels and other hard materials. With a 3/64 inch (0.0470 inch decimal) mill diameter, 2-flute spiral geometry, and a 20-degree right-hand helix, this single-end tool is built for tight-tolerance finish passes where surface quality and dimensional accuracy are critical. The AlTiN Nano PVD coating provides thermal resistance and extended tool life in abrasive cutting environments. Overall length is 2.5 inches with a 1/4 inch straight-cylindrical shank. The stub length type and extended reach design make it well suited for fine detail work in hardened workpieces.

This end mill is part of the Harvey Tool End Mills for Hardened Steels - Finishers - Ball series and is intended for finishing passes on hard materials, with secondary suitability for steel, stainless steel, and cast iron. Typical applications include mold and die work, tooling repair, and precision contouring in CNC machining centers where small-diameter ball end geometry is required. It is not designed for roughing operations or soft non-ferrous materials.

Key Features

• AlTiN Nano PVD coating for heat resistance and extended tool life in hard materials
• 2-flute right-hand spiral geometry optimized for finishing passes
• 0.0235 inch nose radius with 0.0330 inch neck length for fine detail access
• Extended reach design with 0.0710 inch reach length (1.80 mm)
• Mill diameter tolerance of +0.0000 / -0.0006 inches for tight dimensional control
• Straight-cylindrical 1/4 inch shank with h6 shank diameter tolerance

Compatibility

Designed for use in CNC machining applications involving hard materials, steel, stainless steel, and cast iron. Part of the Harvey Tool End Mills for Hardened Steels - Finishers - Ball and Material Specific End Mills series.

Installation Notes

Installation is performed by qualified CNC machinists or tool and die technicians. Secure the shank in a compatible collet or end mill holder rated for the 1/4 inch shank diameter before spindle engagement. Verify runout at setup, as small-diameter carbide tooling is sensitive to fixture concentricity. Do not use this tool for interrupted cuts or roughing passes, as the solid carbide construction is brittle under high lateral shock loads.