Harvey Tool 73018 Square End Mill 0.018 in 4 Flute Carbide

Product Description

The HARVEY TOOL 73018 is a miniature square end mill designed for precision milling in tight tolerances and small-scale features. Built from solid carbide, it delivers the rigidity and wear resistance required for fine detail work in ferrous and non-ferrous materials. The tool runs a 0.0180-inch cutting diameter with a 0.054-inch length of cut, a 0.125-inch shank diameter, and a 1.5-inch overall length. The 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Center-cutting geometry allows plunge entry. This end mill is typically installed by machinists and tooling specialists in CNC milling applications requiring fine, accurate cuts.

The 73018 is suited for high-precision CNC milling operations where small diameter tooling is required. Common applications include micro-feature milling, engraving, slotting, and profiling in prototype shops, medical device manufacturing, aerospace component machining, and electronics fabrication. The bright uncoated finish makes it a versatile choice across a range of workpiece materials where coating interaction is a concern. Its right-hand cut and right-hand flute configuration are standard for conventional CNC mill setups.

Key Features

• Solid carbide construction for rigidity and extended tool life at small diameters
• 0.0180-inch cutting diameter with 0.054-inch length of cut for micro-detail work
• 4-flute design balances chip clearance and surface finish in fine milling passes
• 30-degree helix angle promotes smooth cutting action and chip evacuation
• Center-cutting geometry permits direct plunge entry
• Bright uncoated finish — compatible with a wide range of workpiece materials

Compatibility

Designed for use in CNC milling machines accepting a 0.125-inch shank diameter collet or toolholder. Suitable as a direct replacement or supplemental miniature end mill in standard right-hand spindle configurations.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the 0.125-inch shank securely in a properly sized collet or end mill holder to the recommended grip depth — do not expose more shank than necessary. At this diameter, tool deflection and runout are critical factors; use a high-precision collet and verify runout before cutting.