TM-112-40X Thread Milling Cutter - UN, 4-40 Thread Size, 080" Cutter Dia, 3/16" LOC, 2 Fl, 1/4" Shank Dia, 2" OAL, AlTiN

Micro 100 Thread Milling Cutters are designed for milling thread relief at the bottom of a thread, with styles available for UN threads, NPT threads, NPTF threads, and metric threads.

The Single Form UN Thread Mills are designed to mill internal and external 60° left hand and right hand threads, while the Single Form Reduced Shank UN Thread Mills can be chucked at any depth.

Micro 100's Multi-Form Thread Mills are available in Metric, NPTF, NPT, and UN thread styles, making them a fully stocked line of thread milling cutters for any application.

With high-quality materials and optimized designs, these thread milling cutters are perfect for deep thread milling applications and will get the job done right the first time.