The Carmex Twin Threading Insert Holder (SR0050M40-2) is an indexable threading tool designed for CNC milling. It accepts carbide external or internal threading inserts and, using helix interpolation, produces accurate threads with high productivity on standard milling centers.

With a twin-insert design, this holder delivers faster threading cycles and consistent results, while the internal coolant bore supports effective heat management and chip control for longer insert life and reliable performance across jobs.

• Twin-insert design for higher productivity: Two threading inserts work together to increase throughput on CNC mills, reducing cycle times and enabling efficient thread milling across common sizes.
• Carbide inserts for external and internal threading: Flexible compatibility with carbide threading inserts for both external and internal threads, helping you standardize consumables and lower overall tooling costs.
• Internal coolant bore for cooling and finish quality: Built-in coolant channel directs coolant to the cutting edge, enhancing heat management, chip evacuation, and surface finish while extending insert life.

Designed to integrate smoothly into existing workflows, the Carmex SR0050M40-2 helps you complete threaded features faster, with repeatable accuracy and lower tooling spend. By combining a robust twin-insert holder with carbide inserts and active cooling, you gain reliable performance, reduced downtime, and consistent thread quality across a range of materials and applications.