The Carmex SRH Toolholder with Internal Coolant Bore (SRH63-9) is a modular holder designed for spiral mill-threading inserts. It supports 1 to 9 inserts in a compact cutting diameter, making it suitable for everything from precision threading on small components to heavy‑duty milling on larger workpieces. An integrated coolant bore directs coolant directly to the cutting edge, helping control heat, extend tool life, and improve surface finish across applications.

• Internal coolant bore for direct cooling: Delivers coolant precisely to the cutting edge, improving chip evacuation, reducing heat buildup, and extending tool life during threading and milling operations.
• Spiral flute design for smooth, high‑feed cutting: Enables a higher feed rate with smoother cutting, reducing cycle times and vibration for consistent results on both small parts and heavy‑duty milling.
• Up to 9 inserts with precise indexability: The compact body holds 1–9 inserts with a unique clamping method that ensures reliable index positioning and repeatable performance, compatible with MT7 sub-micron TiN-coated inserts (ISO K10‑K20).

This toolholder delivers reliable performance across a broad range of machining tasks, from precise spiral threading to high-throughput milling. The internal coolant bore, spiral geometry, and robust clamp design work together to reduce vibration, shorten cycle times, and maintain tight tolerances. When paired with MT7 TiN-coated inserts, it offers durable wear resistance and broad material compatibility without requiring complex setup changes.