Harvey Tool 34247-C3 Ball End Mill 0.047 in 3 Flute Altin

Product Description

The HARVEY TOOL 34247-C3 is a solid carbide ball end mill designed for precision milling in tight-tolerance and miniature-scale applications. With a 0.047-inch (3/64-inch) mill diameter and a 0.07-inch length of cut, this tool is built for fine detail work where rigidity and accuracy are critical. The 3-flute geometry with a 30-degree helix angle promotes efficient chip evacuation while maintaining a strong cutting edge. An AlTiN PVD coating provides heat resistance and wear protection, making this end mill well suited for steel, stainless steel, and cast iron. It is a single-end, right-hand cutting tool with a straight cylindrical shank and extended-reach configuration.

This end mill is intended for machinists and toolroom professionals working with small-scale features in ferrous and hard materials. The long-reach, stub-flute design allows access to recessed pockets and contoured surfaces where standard-length tools cannot reach. With a 0.375-inch reach length and a 0.305-inch neck length, it fits within the Harvey Tool Miniature End Mills series and is appropriate for CNC machining centers and high-speed milling setups. The 1/8-inch shank diameter is compatible with standard collet systems used in vertical machining centers and CNC routers. This tool handles both roughing and finishing operations in a single setup.

Key Features

• 0.047-inch ball end diameter with a 0.0235-inch nose radius for fine contour milling
• AlTiN PVD coating for elevated heat resistance in ferrous material cutting
• 3-flute spiral design with 30-degree helix for balanced chip flow and surface finish
• Extended-reach, stub-flute geometry for access to deep or recessed features
• Center-cutting capable for plunge entry without a pre-drilled pilot hole
• Right-hand cut and right-hand flute direction for conventional CNC spindle use

Compatibility

Designed for use in CNC machining applications involving steel, stainless steel, and cast iron. The 1/8-inch straight cylindrical shank fits standard ER and similar collet systems. Part of the Harvey Tool Miniature End Mills - Ball - Long Reach, Stub Flute series.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder runout and collet torque. Ensure the spindle is fully stopped and the machine is in an E-stop or locked-out state before changing tooling. Verify collet size matches the 1/8-inch shank diameter and inspect the shank for contamination before seating. Due to the miniature diameter, handle with care to avoid chipping the cutting edge during storage and setup.