The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precise internal boring and light turning on small-diameter workpieces. With a 5.1 mm minimum diameter, a 22 mm reach, and an R0.2 nose radius, this left-hand tool delivers reliable, repeatable cuts in tight features.

This BXC Grade variant uses a PVD TiN coating optimized for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40), pairing rigidity with smooth, predictable performance. The Carmex family also includes BMK-grade options for ultra-high heat resistance, all designed to cover a broad range of materials and applications.

• Compact, precise bore geometry: 5.1 mm minimum diameter and 22 mm reach enable deep, accurate boring in tight spaces with minimal tool changes.
• TiN-coated wear resistance for stainless steels: PVD coating reduces wear at low cutting speeds, helping sustain dimension accuracy and surface finish on ISO P30-P50 / K25-K40 materials.
• Left-hand orientation with R0.2 nose: Delivers stable cutting and smoother finishes in left-handed bore operations, with a small nose radius that minimizes chatter and improves surface quality.

By combining a rigid carbide core with a coating-enhanced surface and a compact form factor, this tool helps you complete bore work faster, with consistent results and fewer passes. It’s a reliable choice for small-diameter bores, challenging stainless steels, and general turning tasks, delivering predictable performance and improved shop efficiency.