The Carmex Carbide Tiny Tool - Boring Bar (MTL - K20 Grade) is a compact solid carbide bar built for precision boring and general turning. Its 8.1 mm minimum diameter, 15 mm reach, and left-hand R0.2 nose geometry make it ideal for tight bores and hard-to-reach features, delivering reliable, repeatable cuts every time.

This bar is engineered for versatility with two coating families that optimize performance across materials and speeds. The BXC TiN coating excels at low cutting speeds and broad stainless-steel compatibility (ISO P30–P50 / K25–K40), while the BMK sub-micron grade uses a triple PVD coating for exceptional heat resistance and smooth cutting across all materials (ISO K10–K20). Choose the coating that best matches your material and process to maximize tool life and finish quality.

• Dual coating options for versatile performance: BXC TiN and BMK triple-coated carbide tailor cutting performance to material and speed, improving wear resistance and finish consistency across stainless steels and other alloys.
• Compact, long-reach geometry for tight bores: 8.1 mm minimum diameter with a 15 mm reach and left-hand R0.2 nose enables precise machining in confined spaces and deep features without sacrificing stability.
• K20-grade solid carbide for durability: High-hardness carbide delivers reliable, long-lasting performance under demanding cutting conditions, supporting consistent results across materials.

Designed to streamline small-diameter bore work and general turning, the Carmex Tiny Tool delivers consistent results, reduces tool changes, and helps you maintain tight tolerances and smooth finishes across a range of materials. Its robust construction and coating options make it a dependable choice for precision machining in both production and workshop environments.