Scientific Cutting Tools TM450-11A Thread Mill 5/8-11 Unc

Product Description

The SCIENTIFIC CUTTING TOOLS TM450-11A is a straight flute internal thread mill designed to cut 5/8-11 UNC threads in a single helical pass. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it delivers consistent thread geometry and extended tool life in ferrous and hardened materials. The 4-flute configuration provides rigidity and chip clearance in blind and through-hole applications. With a 0.45-inch cutting diameter and 1.127-inch length of cut, it handles standard 5/8-11 internal threading operations in machining centers running appropriate CNC thread-milling cycles.

This thread mill is suited for production and job-shop environments where a single tool must generate 5/8-11 UNC internal threads across varying depths. The 1/2-inch shank diameter fits standard ER and milling chucks common on vertical and horizontal machining centers. The straight flute geometry is well-suited for softer materials and thin-walled workpieces where axial cutting forces must be minimized. It is installed and operated by CNC machinists and tool-and-die professionals.

Key Features

• 5/8-11 UNC internal thread profile at 11 TPI with a 0.45-inch cutting diameter
• Submicron-grade solid carbide substrate for wear resistance and dimensional stability
• AlTiN+ coating extends tool life in steel, stainless, and cast iron
• 4 straight flutes provide rigidity and controlled chip evacuation
• 1.127-inch length of cut accommodates a range of thread depths
• 1/2-inch shank diameter for compatibility with standard milling toolholders

Compatibility

Designed for use in CNC machining centers capable of running thread-milling G-code cycles with a 1/2-inch collet or end mill chuck toolholder for 5/8-11 UNC internal threading applications.

Installation Notes

Thread mills must be installed in a runout-minimizing toolholder such as a precision ER collet chuck; excessive runout will degrade thread quality and tool life. Confirm the machining center control supports helical interpolation thread-milling cycles before use. Power down and secure the spindle before tool changes, following applicable machine guarding procedures. Use appropriate cutting fluid or coolant strategy for the workpiece material even though this tool does not feature through-coolant.