Scientific Cutting Tools TM450-16HA Thread Mill 9/16-16

Product Description

The SCIENTIFIC CUTTING TOOLS TM450-16HA is a solid carbide helical flute thread mill designed for cutting 9/16-16 UN threads in both internal and external applications. Built from submicron-grade carbide and finished with an AlTiN+ coating, this tool handles demanding threading operations in hardened and abrasive materials. It runs a 0.45-inch cutting diameter with a 1.088-inch length of cut, giving machinists sufficient reach for typical thread depths at this pitch. The 0.5-inch shank fits standard ER and side-lock toolholders used on CNC machining centers. Four right-hand helical flutes provide a stable cutting action and efficient chip evacuation throughout the threading cycle.

This thread mill is suited for CNC machining center work in job shop, production, and toolroom environments. It performs in materials ranging from aluminum and stainless steel to hardened tool steels where the AlTiN+ coating provides thermal protection and extended tool life. Because a single tool cuts both internal and external threads at the 9/16-16 pitch, it reduces tooling inventory on mixed-operation setups. Typical applications include threaded features in aerospace components, hydraulic manifolds, dies, and general precision machined parts requiring UN-standard threads.

Key Features

• Cuts 9/16-16 UN threads internal and external with one tool
• Submicron-grade solid carbide substrate for rigidity and wear resistance
• AlTiN+ coating for thermal protection in ferrous and hardened materials
• Four right-hand helical flutes for stable cutting and chip evacuation
• 0.5-inch shank diameter fits standard CNC toolholders
• No coolant-through required - compatible with external flood or mist cooling

Compatibility

Designed for use on CNC machining centers with standard 0.5-inch shank toolholding; cuts 9/16-16 UN-standard threads in internal and external configurations.

Installation Notes

Thread mills are installed and operated exclusively on CNC machining centers using helical interpolation G-code routines - this tool is not for use in manual or hand-tapping operations. Verify spindle speed and feed rates in the CAM program before running; incorrect interpolation parameters are the primary cause of thread-form error and tool breakage. Inspect the toolholder collet or chuck for runout before use, as excessive runout accelerates flute wear at this diameter. Follow the machine tool builder and cutting tool manufacturer recommendations for thread milling cycle programming.