The Carmex Internal Thread Turning Holder (Left Hand) is a precision tool designed for machinists and production shops that require reliable internal threading with a long reach. Built for consistent performance in demanding operations, it pairs with standard U-Type inserts to deliver secure, accurate results.

• Left-Hand Internal Threading Holder: specifically configured for left-handed internal thread production, ensuring correct thread direction and reliable engagement.
• 250 mm Overall Length (OAL): extended reach provides access to deeper bores while maintaining rigidity and control.
• 32 mm Shank Size: robust shank for stable toolholding and compatibility with common tool setups.
• 22IL Insert Compatibility: designed to accommodate 22IL inserts for precise internal thread profiles and efficient chip control.
• U-Type Holder Design: engineered to securely fit U-Type inserts, delivering a secure, accurate interface and repeatable performance.
• 1.5° Helix Angle: optimizes chip evacuation and reduces cutting forces, contributing to smoother threading operations and longer insert life.
• Screw Clamp Construction: dependable clamping mechanism that minimizes runout and maintains consistent tool position during heavy cutting.
• Internal Threading Capability: purpose-built for internal threads, enabling clean, accurate bore threading in a range of materials.

This holder is ideal for shops performing precision internal threads in automotive components, hydraulic fittings, pneumatic housings, and other bore-focused applications. The combination of a long reach, secure U-Type insert compatibility, and a gentle 1.5° helix angle translates to better chip control, steadier cutting forces, and more predictable thread profiles—especially on longer bores or difficult-to-access locations. Whether upgrading an existing setup or standardizing on Carmex tooling, this left-hand internal thread turning holder offers dependable performance with straightforward setup and repeatable results.