Scientific Cutting Tools SPTM098A Thread Mill 32-64 Tpi

Product Description

The SCIENTIFIC CUTTING TOOLS SPTM098A is a single profile thread mill designed for cutting internal and external threads in the 32 to 64 TPI range, covering thread sizes from 6-32 to 6-64. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, this tool delivers consistent thread geometry in ferrous and non-ferrous materials across CNC milling applications. The 3-flute design balances chip evacuation with surface finish quality. Cutting diameter is 0.098 inches, shank diameter is 3/16 inches, and overall length is 2 inches, making it suitable for confined-bore threading operations where a single-point form tool is the preferred approach.

This thread mill is intended for use in CNC machining centers where helical interpolation is available. It handles both internal and external thread profiles in a single tool, reducing the need for separate tap and die tooling. Typical applications include production threading of small fastener holes and threaded features in precision components. The neck geometry allows access to threads at depth without interference from the shank. Machinists working in aerospace, medical device, and general precision machining will find this tool appropriate for 6-32 and 6-64 threaded features.

Key Features

• Cuts internal and external threads from 32 to 64 TPI in a single tool
• Submicron-grade solid carbide construction for rigidity and wear resistance
• AlTiN+ coating improves tool life in high-temperature and abrasive cutting conditions
• 3-flute configuration promotes chip clearance and consistent thread finish
• Neck diameter of 0.049 inches and neck length of 0.25 inches allow threading at depth in tight bores
• Helical interpolation-compatible design eliminates the need for dedicated taps in this thread range

Compatibility

Designed for use in CNC milling applications requiring single profile thread milling of 6-32 to 6-64 thread sizes with a 3/16-inch shank collet or end mill holder.

Installation Notes

Installation and use of this tool requires a CNC machining center capable of helical interpolation. Secure the 3/16-inch shank in a precision collet or hydraulic chuck to minimize runout before threading operations. Verify spindle speed, feed rate, and helix pitch in the CAM program against the material being cut before running the first thread. Do not use this tool in a conventional drill press or manual mill.