The Carmex Thread Turning External Holder (Left-Hand, 150 mm OAL) is built for precise external threading on lathes, delivering dependable rigidity and repeatable results. Designed to pair with the 27EL insert, it ensures stable, efficient thread turning in demanding machining environments.

• Left-Hand External Thread Turning Holder: Optimized for left-handed threading operations to match your cutting direction and chip flow.
• 150 mm Overall Length (OAL): Extended reach that maintains rigidity while accessing challenging work geometries.
• 25 x 25 mm Shank: Square shank size for secure seating in standard tool holders and turrets.
• 27EL Insert Compatibility: Specifically designed to accept the 27EL threading insert for precise, consistent cuts.
• ER/EL Insert Compatibility: Supports common external-thread inserts in the ER/EL families for versatile threading needs.
• Screw Clamp Mechanism: Robust clamping delivers minimal runout and dependable depth control during cuts.
• 1.5° Helix Angle: Helix geometry promotes efficient chip evacuation and smoother cutting performance.

This holder is ideal for shops that require accurate external thread turning with a reliable clamp, long reach, and proven insert compatibility. The combination of a secure screw-clamp design, precise 1.5° helix angle, and compatible insert ecosystem helps you achieve clean thread starts, consistent pitch accuracy, and better surface finish—even on challenging materials. Whether you’re upgrading existing tooling or building a dedicated threading setup, this left-hand Carmex holder provides stability, repeatability, and straightforward setup for external threading operations.