Harvey Tool 994547-C3 Corner Radius End Mill 0.047in 4 Flute

Product Description

The HARVEY TOOL 994547-C3 is a miniature solid carbide corner radius end mill designed for precision milling in tight-tolerance applications. It carries a 0.0470-inch mill diameter, a 0.0100-inch corner radius, and a 4-flute geometry with a 30-degree right-hand spiral helix. The AlTiN PVD coating extends tool life when cutting ferrous and hard materials. At 1.5 inches overall length with a 1/8-inch straight cylindrical shank, this single-end, centercutting tool is built for both roughing and finishing passes in miniature and micro-machining setups run by machinists and CNC operators.

This end mill is suited for precision milling operations on steel, stainless steel, cast iron, non-ferrous metals, and composite materials. The stub-length geometry and short length of cut keep the tool rigid in high-speed spindle applications where deflection and runout control are critical. Typical use cases include mold and die work, medical component machining, aerospace detail parts, and any operation requiring a controlled corner radius blend at small diameters. It is compatible with standard straight-bore toolholders accepting a 1/8-inch shank.

Key Features

• 0.0470-inch mill diameter with 0.0100-inch corner radius for precise edge blending at miniature scale
• 4-flute solid carbide construction provides rigidity and smooth chip evacuation
• AlTiN PVD coating improves heat resistance and tool life on steel and stainless steel
• 30-degree right-hand helix supports both roughing and finishing in a single tool
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Stub-length geometry minimizes deflection in high-speed CNC milling applications

Compatibility

Designed for use with standard toolholders accepting a 1/8-inch straight cylindrical shank. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, and composites as specified by the manufacturer.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout state before loading or changing tooling. Seat the 1/8-inch shank fully into the toolholder bore and verify runout with a dial indicator before initiating a cut. Follow shop SOP and machine manufacturer guidelines for collet torque and spindle speed limits appropriate to this diameter.