The Carmex Carbide Tiny Tool - Boring Bar, featuring MTR - TNX Grade, is a compact solid carbide bar designed for high-precision boring and capable turning. With a 5.1 mm minimum diameter, a 22 mm reach, and a nose radius of R0.2, it delivers tight tolerances and clean finishes in small-diameter holes. This tool is well-suited for engineers, machinists, and hobbyists who need reliable performance in confined spaces.

Two coating options enhance its versatility: BXC - PVD TiN coating optimized for low cutting speeds on stainless steels, and BMK - a sub-micron grade with advanced PVD triple coating for exceptional heat resistance and smooth cutting across a wide range of materials. These coatings help extend tool life and sustain consistent results in demanding applications.

• Boring and turning versatility: Designed as a solid carbide bar that excels in boring while also handling general turning tasks, delivering consistent hole geometry and reliable surface finish across supported materials.
• Coatings for durability and smooth cutting: BXC TiN reduces friction at low speeds on stainless steels, while BMK’s triple coating provides superior heat resistance for longer tool life and smoother cuts on a broad material set.
• Compact size with precise nose geometry: 5.1 mm minimum diameter, 22 mm reach, and a R0.2 nose radius enable access to tight bores and precise entry/exit, improving dimensional control and finish quality.

Together, the Carmex Tiny Tool delivers reliable, repeatable performance that helps you complete bore work faster, reduces tool changes, and maintains consistent results across production runs and precision projects. The rigid carbide core combined with specialized coatings supports longer tool life and predictable results, giving you confidence in every setup.