Osg 1662501517 Thread Mill 9/16-12 Unc 5 Flute Solid Carbide

Product Description

The OSG 1662501517 is a solid carbide helical flute thread mill designed for cutting 9/16-12 UNC threads in both internal and external applications. With a 0.382-inch cutting diameter and a 1.333-inch length of cut, this tool handles a range of thread depths in a single helical pass. The 5-flute right-hand geometry promotes smooth chip evacuation and consistent thread form. An EgiAs coating is applied to extend tool life and reduce friction at the cutting edge. This tool is suited for use by machinists and tool and die professionals working with CNC machining centers capable of helical interpolation.

The 1662501517 is applied in production and job-shop environments where 9/16-12 UNC threaded features are required in ferrous and non-ferrous workpieces. It performs in both internal bore threading and external thread milling operations, reducing the need to stock separate taps and dies for this thread size. The 0.500-inch shank diameter provides a secure, standard-size gage-line fit in collet chucks and end mill holders. Right-hand thread direction and right-hand flute direction match conventional CNC spindle rotation and helical interpolation routines.

Key Features

• Cuts 9/16-12 UNC threads in both internal and external orientations
• Solid carbide construction for rigidity and wear resistance
• EgiAs coating reduces friction and extends cutting edge life
• 5 right-hand helical flutes for efficient chip removal
• 0.500-inch shank diameter fits standard collet and end mill holders
• No coolant-through requirement simplifies setup

Compatibility

Designed for use on CNC machining centers capable of helical interpolation for 9/16-12 UNC thread forms in internal and external applications.

Installation Notes

This tool is installed by machinists in a collet chuck or end mill holder sized for a 0.500-inch shank. Verify that the machining center control supports helical interpolation before programming the thread milling cycle. Confirm runout at the cutting diameter is within acceptable limits before starting production cuts. Follow the machine tool manufacturer and cutting tool manufacturer guidelines for feed rate, speed, and axial step-down when setting up the thread milling routine.