The Carmex SR0010H12 Single Threading Insert Holder is a precision tool holder designed for carbide external and internal threading inserts. Compatible with the Mill-Thread family, it enables threading on CNC milling machines using helical interpolation for fast, reliable threads.

This holder is built for engineers, machinists, job shops, and hobbyists who need a versatile, cost-efficient solution for threading tasks—from prototypes to production runs. It supports quick insert changes and stable, repeatable threading performance, helping you push faster cutting speeds without compromising accuracy.

• Internal coolant bore: Directs coolant through the holder to the cutting zone, helping maintain thread precision, reduce heat buildup, and extend insert life during demanding threading jobs.
• Designed for Mill-Thread carbide inserts: Optimized to seat and align Mill-Thread inserts securely, ensuring consistent thread profiles and reliable seating across operations.
• Economical threading solution: A cost-effective alternative to taps and dies that lowers tooling costs while delivering durable performance for both light-duty and production threading tasks.

With the SR0010H12 holder, you can execute precise external and internal threads on CNC mills with confidence. The internal coolant bore improves cooling efficiency and chip control, helping you sustain higher cutting speeds and longer insert life. Its Mill-Thread compatibility provides a flexible, reusable platform for a wide range of threading jobs, reducing setup time and enabling consistent results across shifts. By replacing or supplementing traditional taps and dies, this holder supports leaner tooling inventories and faster throughput, so you can complete more work in less time without sacrificing quality.