The Carmex SRH Toolholder With Internal Coolant Bore for Spiral Mill Threading Inserts (SRH23-2) is built for versatility across a wide range of milling tasks—from precision threading on small components to heavy-duty work on high-power machines. Its spiral flute design enables smooth cutting at higher feed rates, reducing machining time while maintaining control and accuracy. The internal coolant bore channels coolant directly through the tool, supporting effective heat management and consistent finishes on every pass.

• 1–9 inserts in a compact cutting diameter: The spiral toolholder design accommodates 1 to 9 inserts within a relatively small diameter, maximizing cutting edges per tool and reducing tool-change downtime for faster production.
• Optimal indexability with a unique clamping method: A purpose-built clamping system ensures precise, repeatable seating and easy indexing, delivering reliable performance across long runs and different materials.
• Internal coolant bore for efficient cooling: Coolant is delivered through the tool to the cutting edge, helping manage heat, extend insert life, and maintain a high-quality finish on threading, roughing, and finishing operations.

Inserts are available in MT7 Sub-Micron Grade with TiN multi-layer coating (ISO K10–K20), a general-purpose option that delivers wear resistance across a broad range of materials. This combination of spiral geometry, robust clamping, and durable inserts provides a dependable, adaptable solution that supports faster cycles, smoother finishes, and consistent results in both light-duty precision work and demanding milling tasks.