The Carmex Spiral Mill Threading Insert (Metric/ISO, MT7) is a versatile threading and milling tool designed to perform across a wide range of machines—from compact precision centers to high-power mills. Its spiral geometry enables a smooth cutting action at higher feed rates, helping you reduce cycle times and improve productivity on threading, roughing, and finishing operations.

• 1–9 inserts in a compact cutting diameter: A flexible, indexable system that lets you tailor cutting power and longevity by choosing how many inserts to use, while keeping the overall tool diameter small for tight work envelopes.
• Unique clamping for optimal indexability: A proven mounting method that delivers precise insert positioning and easy, repeatable indexing, so setup is faster and results are consistent job after job.
• MT7 Sub-Micron Grade inserts with TiN coating (ISO K10–K20): High-performance, wear-resistant inserts designed for a broad range of materials, providing long life and reliable finishes in threading, roughing, and finishing tasks.

These features translate to real-world benefits: faster machining times without sacrificing thread quality, easier setup and maintenance, and predictable performance across diverse materials. The spiral mill threading insert is built to withstand demanding production environments while delivering smooth, precise finishes and dependable tool life. Upgrade your milling and threading workflows with a single, adaptable system that reduces downtime and keeps you moving toward tighter tolerances and better throughput.