The Carmex Spiral Mill Threading Insert - BSPT is a versatile threading tool designed for a wide range of milling applications, specifically engineered for BSPT threads. It delivers smooth cutting at higher feed rates, helping you finish threads faster while maintaining precision. Suitable for everything from small components on compact machining centers to heavy-duty milling on larger machines, this system is built to boost productivity without compromising accuracy.

Spiral fluted toolholders accommodate 1 to 9 inserts in a compact cutting diameter, with a unique clamping method that enables reliable indexability. The inserts are MT7 Sub-Micron Grade with Titanium Nitride multi-layer coating (ISO K10-K20), providing a durable, versatile solution for threading, end milling roughing, and finishing across a wide range of materials.

• High-speed, smooth cutting: Spiral design delivers smooth cutting at high feed rates, reducing cycle times and boosting productivity across diverse materials.
• Flexible insert configuration with precise indexability: Toolholders support 1 to 9 inserts in a compact diameter, with a unique clamp that ensures reliable indexing and stable performance.
• MT7 Sub-Micron TiN-coated inserts for universal use: Sub-Micron MT7 inserts with TiN multi-layer coating (ISO K10-K20) offer durable wear resistance and consistent finishes on all materials.

Together, these features provide a reliable threading solution that covers small-part precision and heavy-duty milling needs. The spiral cutting action, flexible insert count, and hardened TiN-coated MT7 inserts help streamline setups, maintain consistent thread quality, and deliver dependable results across materials—supporting faster cycles, better finishes, and smoother workflows from start to finish.