The Carmex SRH40-4 Toolholder with Internal Coolant Bore is designed for spiral mill-threading inserts, delivering smooth cutting at high feed rates and reducing machining time. It’s versatile enough for everything from small components on compact machining centers to demanding workloads on high-power milling machines.

Spiral-fluted design accommodates 1 to 9 inserts in a comparatively small cutting diameter, while a unique clamping method ensures optimal indexability. This approach helps minimize vibration and chatter, enabling a high-grade finish across threading, end milling roughing, and finishing tasks.

• Spiral flute design for smooth, high-feed cutting: The spiral geometry enables a smoother cutting action at high feed rates, reducing machining time and helping you achieve cleaner surfaces.
• Flexible insert capacity with precise indexing: Holds 1 to 9 inserts in a compact cutting diameter, with a unique clamp method that ensures reliable, repeatable index positioning with every insert change.
• MT7 Sub-Micron TiN-coated inserts for wide material compatibility: Inserts are available in MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20). This general purpose grade is suitable for use with all materials.

Using the SRH40-4 supports reliable, efficient threading and milling operations. The spiral design reduces vibration and chatter, while the flexible insert capacity and the unique clamping method deliver confident, repeatable indexing. With MT7 Sub-Micron TiN-coated inserts offered as a general-purpose option for all materials, this toolholder helps you achieve consistent results across applications and maintain productive workflows.