Harvey Tool 35615-C3 Ball End Mill 1/64 in 3 Flute Carbide

Product Description

The HARVEY TOOL 35615-C3 is a miniature solid carbide ball end mill designed for high-precision milling in steel, stainless steel, and cast iron. With a 1/64 inch (0.0150 inch decimal) ball nose diameter and a 3-flute, right-hand spiral configuration, it delivers both roughing and finishing capability in a single tool. The AlTiN PVD coating provides heat and wear resistance suited for ferrous materials. An extended reach design with a 3/16 inch reach length and 0.1650 inch neck length allows access to deep or confined features without sacrificing rigidity in the flute zone. Licensed machinists and CNC operators working in precision mold, die, or aerospace component work are the primary users.

This end mill fits applications requiring tight-tolerance work in steel and stainless steel at the micro scale. The stub flute length of 0.0220 inch LOC limits deflection and supports accurate feature reproduction in hardened or difficult-to-machine materials. The 1/8 inch straight-cylindrical shank is compatible with standard collet systems. It is well suited for CNC machining centers handling intricate cavity, slot, and contour work where tool reach into narrow pockets is required.

Key Features

• 1/64 inch (0.0150 inch) ball nose diameter for micro-scale contouring and profiling
• 3-flute right-hand spiral geometry supports both roughing and finishing passes
• AlTiN PVD coating enhances thermal resistance and tool life in ferrous materials
• Extended reach with 3/16 inch reach length and 0.1650 inch neck length for deep-feature access
• Stub flute design minimizes deflection in precision micro-milling operations
• 30-degree helix angle balances cutting forces and chip evacuation

Compatibility

Designed for use in CNC machining centers with standard 1/8 inch collet or chuck systems. Primary workpiece materials are steel, stainless steel, and cast iron as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before inserting or removing the tool. Use a properly sized collet matched to the 1/8 inch shank diameter and torque the collet nut according to the collet manufacturer specifications. Verify runout at the tool tip before cutting, as excessive runout at this diameter will damage the flutes and compromise part accuracy.