Harvey Tool 13920-C3 Square End Mill 1/64 in 2 Flute Altin

Product Description

The HARVEY TOOL 13920-C3 is a square end mill designed for precision milling in demanding machining environments. Built from solid carbide with an AlTiN (aluminum titanium nitride) coating, this tool delivers hardness and heat resistance needed for cutting ferrous and non-ferrous materials at high speeds. The 1/64 inch cutting diameter and 1/32 inch length of cut make it suited for fine detail work, micro-slot milling, and tight-tolerance profiling. A 30-degree helix angle and centercutting geometry allow both plunge and lateral cutting. CNC machinists and toolroom operators are the primary users of this end mill.

This end mill is intended for use in CNC machining centers and high-speed spindle applications where small-diameter tooling is required. The 1/8 inch shank diameter fits standard collet systems commonly found in vertical machining centers and CNC routers. Its 1-1/2 inch overall length provides adequate rigidity for micro-milling operations in mold making, medical component machining, and precision part production. Right-hand cut and right-hand flute orientation follow standard convention for most production setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter tooling
• AlTiN coating provides heat resistance and extends tool life in dry or semi-dry cutting conditions
• 30-degree helix angle improves chip evacuation and surface finish
• Centercutting design allows direct plunge entry without pre-drilling
• 1/64 inch (0.0200 inch / 0.5 mm) cutting diameter for micro and fine-detail milling
• Right-hand cut, right-hand flute configuration compatible with standard machine spindle rotation

Compatibility

Designed for use in CNC machining centers and high-speed spindle setups equipped with 1/8 inch collet or ER collet systems accepting standard shank end mills.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom professional. Ensure the machine spindle is fully powered down and locked out before loading or unloading the tool. Use a calibrated torque wrench and the appropriate collet nut wrench when seating the shank in the collet to avoid runout. At this diameter, even minor runout or improper seating can cause immediate tool breakage — verify tool projection and runout with a dial indicator before initiating a cut.