Osg 1662500717 Thread Mill 3/8-24 4 Flute Solid Carbide

Product Description

The OSG 1662500717 is a helical flute thread mill designed for cutting 3/8-24 UNF internal threads in a CNC machining environment. Built from solid carbide with an EgiAs coating, it delivers wear resistance and thermal stability across a range of workpiece materials. The tool features 4 right-hand flutes and a 0.3130-inch shank diameter, with a cutting diameter of 0.2640 inches and a length of cut of 0.8752 inches. It runs at 24 teeth per inch and belongs to OSG Series 16625. Thread mills like this one are installed in machining centers by machinists and toolroom operators who require precise, single-point thread generation without tapping.

This thread mill is suited for precision threading operations in both production and toolroom settings. The helical flute geometry supports chip evacuation during interpolated thread cutting passes. It is appropriate for use on CNC machining centers capable of helical interpolation. The compact cutting diameter and solid carbide construction make it well-suited for tight-tolerance UNF thread applications in harder workpiece materials where tapping may not be practical. Coolant-through capability is not supported on this tool.

Key Features

• Solid carbide construction for rigidity and extended tool life
• EgiAs coating provides wear resistance and reduced friction at the cutting edge
• 4 right-hand helical flutes for efficient chip evacuation during thread interpolation
• Cuts 3/8-24 UNF threads at 24 teeth per inch
• 0.3130-inch shank diameter for standard collet or end mill holder mounting
• Length of cut at 0.8752 inches accommodates standard thread depth requirements

Compatibility

Designed for use on CNC machining centers capable of helical interpolation for generating 3/8-24 UNF threads. Belongs to OSG Series 16625.

Installation Notes

Install in a precision collet or end mill holder rated for the 0.3130-inch shank diameter. Verify runout before cutting to maintain thread accuracy. Program the machining center for helical interpolation at the correct thread pitch before engaging the workpiece. Power down and secure the spindle before changing or inspecting the tool.