Harvey Tool 763508-C6 Ball End Mill 1/8 in 6 Flute Carbide

Product Description

The HARVEY TOOL 763508-C6 is a 6-flute solid carbide ball end mill designed for roughing operations in hardened steels ranging from 45 to 68 Rc. The 1/8 inch cutting diameter and AlTiN Nano PVD coating make this tool well suited for high-heat, high-hardness applications where tool life and edge integrity are critical. With a variable helix geometry at 20 degrees, it reduces chatter and improves chip evacuation during aggressive cuts. The single-end configuration and straight cylindrical shank seat securely in standard collet and end mill holders. Machinists and tool-and-die professionals working on hardened tooling, mold cavities, or precision components will find this a direct fit for demanding finishing and semi-finishing passes.

This end mill is built for use on hardened steels in the 45 to 68 Rc range, making it appropriate for die steel, tool steel, and other hard ferrous materials. The 3/8 inch length of cut and 3/8 inch reach length allow access to moderate-depth features without excessive overhang. The overall length of 2-1/2 inches accommodates standard toolholding setups on CNC machining centers. The 1/4 inch shank diameter with h6 tolerance ensures a precise, low-runout fit in collet chucks and shrink-fit holders used in high-precision shop environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in hardened materials
• AlTiN Nano PVD coating rated for high-heat cutting in steels up to 68 Rc
• Variable helix geometry at 20 degrees reduces vibration and improves chip flow
• 6-flute design increases feed rate potential and surface finish quality
• Right-hand cut and right-hand spiral flute direction for standard CNC spindle compatibility
• Shank diameter tolerance h6 for precise collet and shrink-fit holder seating

Compatibility

Designed for use in hardened steels from 45 to 68 Rc as part of the Harvey Tool End Mills for Hardened Steels - Ball - Material Specific End Mills series. Suitable for use in standard straight-bore collet chucks, shrink-fit holders, and end mill holders accepting a 1/4 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Seat the shank to the recommended gauge line depth in the toolholder and verify runout before beginning the cut. Consult the machine tool builder and cutting tool manufacturer recommendations for appropriate speeds, feeds, and depth of cut for the specific workpiece material and hardness.