Scientific Cutting Tools SPTM032LA Thread Mill 85-120 Tpi

Product Description

The SCIENTIFIC CUTTING TOOLS SPTM032LA is a single profile thread mill designed to cut both internal and external threads in the 00-85 to 00-120 thread size range, spanning 85 to 120 TPI. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, this tool is engineered for high-accuracy threading in small-diameter applications. The cutting diameter is 0.032 inches, the neck diameter is 0.018 inches, and the overall length is 1.5 inches. With 2 flutes and a 1/8 inch shank, it is suited for CNC machining operations where precision thread form control is required on fine-pitch, miniature threads.

This thread mill is used in CNC milling operations on machining centers capable of helical interpolation. It is appropriate for threading miniature bores and external features in the 00-series thread range, commonly encountered in precision instrument manufacturing, medical device machining, electronics hardware, and aerospace component work. The single profile design allows one tool to cut a range of thread pitches within its TPI window, reducing tooling inventory for shops running varied small-thread applications.

Key Features

• Cuts internal and external threads from 85 to 120 TPI in the 00-series range
• Submicron-grade solid carbide construction for rigidity and wear resistance in fine-pitch work
• AlTiN+ coating improves heat resistance and tool life in ferrous and hard materials
• 0.032 inch cutting diameter and 0.018 inch neck diameter enable access to tight-clearance bores
• 2-flute geometry balances chip evacuation with cutting stability at small diameters
• Single profile design covers a range of pitches, minimizing required tool changes

Compatibility

Designed for use on CNC machining centers with helical interpolation capability. Accepts a 1/8 inch tool holder or collet. Suitable for threading operations in the 00-85 to 00-120 thread size range on both internal and external features.

Installation Notes

Thread mills of this diameter require a CNC machining center with accurate helical interpolation and a rigid, well-balanced toolholding setup to prevent deflection at the neck. Confirm collet and holder runout before use, as excessive runout at this scale will degrade thread quality and reduce tool life. Power down and lock out the spindle before changing or inspecting the tool. Handle solid carbide cutting tools carefully to avoid chipping the flutes or the fine neck geometry.