Carmex Carbide Tiny Tool - Boring Bar - MTR - TNX Grade - 3.1mm Minimum Diameter x 10mm Reach x R0.2

The Carmex Carbide Tiny Tool is a compact solid carbide boring bar designed for precise internal operations in tight spaces. With a 3.1mm minimum diameter, 10mm reach, and a nose radius of R0.2, it excels at small-diameter bores and light turning, delivering accurate, repeatable cuts on stainless steels and other materials.

As part of the MTR TNX line, this tool leverages advanced PVD coatings to match your workload. The BXC variant features TiN coating optimized for low cutting speeds, delivering reliable performance on stainless steels (ISO P30-P50 / K25-K40). The BMK variant uses a sub-micron grade with a triple PVD coating for exceptional heat resistance and a smoother cutting action, making it suitable for demanding materials and longer runs.

• Ultra-compact micro-boring geometry: 3.1mm minimum diameter, 10mm reach, and R0.2 nose radius enable precise holes in tight spaces and stable, repeatable cutting.
• Coating options for durability and versatility: BXC TiN coating for efficient low-speed stainless steel machining and BMK triple-coated variant for high-heat applications, helping reduce wear and maintain a clean cut.
• Rugged carbide construction for reliable results: Solid carbide composition and engineered geometry provide consistent performance across materials, supporting both boring and turning with long-edge stability during production runs.

This tiny tool is designed to improve workflow by enabling accurate internal profiles in small parts, reducing tool-change frequency, and delivering dependable finishes. Use it to achieve repeatable hole sizes, smooth surfaces, and efficient machining in a range of materials, including stainless steels, with confidence in every cut.