Harvey Tool 54270-C3 Thread Mill 1/2-12 to 1/2-32 Solid Carbide

Product Description

The HARVEY TOOL 54270-C3 is a single profile thread mill designed to cut both internal and external threads from 12 to 32 TPI in the 1/2-inch thread size range. Built from solid carbide and coated with AlTiN for heat and wear resistance, this tool handles a wide TPI range from a single tool, reducing changeover time in thread milling operations. The cutting diameter measures 0.388 inches with a 0.5-inch shank diameter and a 4-inch overall length. Four flutes provide a balance of chip evacuation and surface finish. It is intended for use by machinists and CNC operators on vertical machining centers and CNC mills.

This thread mill is suited for production and job-shop environments where a single tool must cover multiple thread pitches in the 1/2-inch thread family. Typical applications include threading bores and external bosses in aluminum, steel, and similar machinable materials. The AlTiN coating extends tool life in dry or minimal-lubrication cutting conditions common in high-speed machining. The 1.75-inch neck length provides clearance for threading deeper features without tool body interference.

Key Features

• Covers 12 to 32 TPI in a single tool, eliminating the need for multiple thread mills across the 1/2-inch thread size range
• Machines both internal and external threads with one setup
• Solid carbide construction for rigidity and dimensional stability
• AlTiN coating improves heat resistance and extends tool life in demanding cutting conditions
• 4-flute geometry balances chip clearance with surface finish quality
• 0.25-inch neck diameter with 1.75-inch neck length provides reach into deeper features

Compatibility

Designed as an OEM-style replacement-grade solid carbide thread mill for CNC machining centers accepting a 1/2-inch straight shank toolholder.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC operator familiar with thread milling toolpaths. Secure the shank in a properly sized collet or end mill holder torqued to the toolholder manufacturer specification before running. Confirm CNC thread milling cycle parameters including helix pitch, cutter compensation, and feed rate before engaging the workpiece. Inspect the tool for chipping or wear regularly, as carbide tools can fail suddenly if run beyond service life.