Harvey Tool 897947-C3 Square End Mill 0.047 in 3 Flute Altin

Product Description

The HARVEY TOOL 897947-C3 is a solid carbide square end mill designed for precision milling in tight geometries and small-feature applications. The cutter runs a 0.047 inch (3/64 inch) diameter with a 21/64 inch length of cut, a 1/8 inch shank diameter, and a 2.5 inch overall length. Three flutes with a 30-degree helix angle and an AlTiN coating deliver efficient chip evacuation and heat resistance at high surface speeds. This is a single-end, centercutting tool with right-hand cut and right-hand flute geometry. It is used by machinists and tool-and-die professionals working on CNC mills and machining centers.

This end mill suits small-feature profiling, slotting, and plunge operations where cutter diameter is tightly constrained. The 0.047 inch diameter makes it well suited for micro-milling work in mold cavities, medical components, aerospace details, and electronics housings where standard end mills are too large. The AlTiN finish extends tool life in ferrous and high-hardness materials by reducing heat transfer into the substrate. The 1/8 inch shank is compatible with standard ER collets and toolholders commonly found on vertical machining centers and CNC routers.

Key Features

• 0.047 inch (3/64 inch) cutting diameter for small-feature and micro-milling work
• Solid carbide construction for rigidity and wear resistance
• AlTiN coating for heat resistance in ferrous and hardened materials
• 3-flute geometry with 30-degree helix for chip clearance in tight pockets
• Centercutting design allows direct plunge entry
• Right-hand cut, right-hand flute - standard CNC spindle compatible

Compatibility

Designed as an OEM-style solid carbide square end mill compatible with standard 1/8 inch ER collet toolholders used on CNC vertical machining centers and high-speed spindle platforms.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the spindle before seating or removing the tool from the collet. Use a calibrated torque wrench on the collet nut to the toolholder specification - do not overtighten, as this can induce runout on small-diameter carbide tools. Inspect the collet bore for chips or debris before clamping, as contamination at this diameter will cause measurable runout and premature breakage.