Scientific Cutting Tools SPTM098LA Thread Mill 32-64 Tpi

Product Description

The SCIENTIFIC CUTTING TOOLS SPTM098LA is a single profile thread mill designed to cut internal and external threads in the 6-32 to 6-64 range, covering 32 to 64 TPI. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, this tool delivers consistent thread form in ferrous and non-ferrous materials across CNC machining centers. The 3-flute geometry balances chip evacuation with cutting stability at small diameters. With a cutting diameter of 0.098 inches and a neck diameter of 0.049 inches, it is sized for tight clearance threading work where rigidity and coating durability are critical to tool life.

This thread mill suits job shops, aerospace component manufacturers, and production machining environments where a single tool must produce a range of thread sizes within the 32 to 64 TPI band. It handles both internal and external thread milling in a single setup, reducing tool changes and simplifying programming. The 3/16-inch shank fits standard collet chucks and shrink-fit holders common on vertical and horizontal machining centers. It is typically installed by CNC machinists and tooling specialists working on precision thread applications in steel, stainless, aluminum, and similar materials.

Key Features

• Single profile design covers 6-32 to 6-64 thread sizes (32 to 64 TPI) with one tool
• Cuts both internal and external threads, reducing tooling inventory
• Submicron solid carbide construction for high wear resistance at small diameters
• AlTiN+ coating improves heat resistance and extends tool life in hard and abrasive materials
• 3-flute geometry supports efficient chip removal in blind and through-hole applications
• 0.049-inch neck diameter provides clearance for deeper thread engagement without deflection

Compatibility

Designed for use in CNC machining centers with collet, shrink-fit, or hydraulic toolholders accepting a 3/16-inch shank. Suitable for thread milling 6-32 to 6-64 internal and external threads in a range of workpiece materials.

Installation Notes

Thread mills require CNC control support for helical interpolation; confirm the machine control and CAM post-processor are configured for thread milling cycles before use. Secure the shank fully in the holder to the recommended engagement depth to minimize runout and deflection at the small neck diameter. Do not use in manual or non-CNC setups. Follow the tooling manufacturer and machine builder guidelines for feeds, speeds, and coolant strategy appropriate to the workpiece material.