The Carmex Internal Thread Turning Holder (Left-Hand) is engineered for precise, reliable internal threading in a compact 125 mm reach. Designed for left-handed threading tasks, it pairs with U-Type inserts to deliver secure, repeatable performance in tight bores.

• Configuration: Internal threading holder in a left-hand setup for dedicated internal threads.
• Overall length: 125 mm (OAL) for extended reach without sacrificing rigidity.
• Shank size: 16 mm shank fits standard toolholding systems.
• Insert compatibility: Designed for U-Type inserts, ensuring a secure, precise fit.
• Insert type: 11IL insert compatibility for established internal threading operations.
• Screw clamp design: Screw clamp securing method provides repeatable toolholding and quick insert changes.
• Helix angle: 1.5° helix angle optimizes chip evacuation and reduces cutting forces during threading.

This holder enables clean, accurate internal threads on bores and housings, even in restricted spaces. The left-hand configuration supports specific threading requirements, while U-Type inserts offer stable alignment and straightforward replacement. The 1.5° helix angle helps chips evacuate smoothly, lowering cutting resistance and extending insert life. With a 125 mm length and 16 mm shank, it balances reach and rigidity for CNC turning centers and milling machines tackling internal threads in tight bores.