UN and Metric SPTM Thread Mills
A versatile, economic way to thread mill UN and metric threads.
Our single profile thread mills are built for flexibility. With one cutting point and helical interpolation, SPTM tools can machine a wide range of UN and metric thread sizes while keeping tool cost low and reducing side pressure during the cut.
Use SPTMs when you need a practical, adaptable thread milling option, especially for small quantities, deep threads, prototypes, repairs, or applications where one tool style needs to cover more than one thread size.
PRODUCT FINDER
Find the right SPTM thread mill
UN SPTM Thread Mills
Best for flexible UN thread milling across internal and external applications.
Metric SPTM Thread Mills
Best for flexible metric thread milling across internal and external applications.
QUICK FIT
Is SPTM the right thread mill for your job?
SPTM is a strong fit when you want versatility over maximum production speed. It is especially useful for mixed work, repairs, prototypes, short runs, and deep threads.
Lower-cost thread milling option
Covers a broader range of UN or metric sizes
Less side-cutting pressure for deep threads
Good fit for prototypes, repairs, and mixed work
Start with the SCT Thread Mill Selection Guide, or contact our team for application guidance.