Carmex Carbide Tiny Tool - Boring Bar - MTR - BXC Grade - 2.1mm Minimum Diameter x 15mm Reach x R0.1

The Carmex Carbide Tiny Tool is a precision boring bar designed for small-diameter internal work and tight spaces. With a 2.1 mm minimum diameter, 15 mm reach, and a nose radius of R0.1, it delivers stable, accurate cuts for boring and general turning tasks across a range of materials.

As part of Carmex’s carbide bar line, this tool offers two coating options to match material and speed needs. BXC Grade uses a PVD TiN coating optimized for low cutting speeds and performs well with stainless steels (ISO P30–P50 / K25–K40). BMK Grade provides a sub-micron grade with a triple PVD coating for excellent heat resistance and smooth cutting across many materials.

• Tiny-diameter boring bar for tight bores: Enables clean, accurate internal features in small parts thanks to its 2.1 mm minimum diameter and 15 mm reach, with a precise 0.1 mm nose radius for sharp finishing.
• Versatile coating options (BXC and BMK): Choose the coating that matches your material and speed. BXC TiN excels at low cutting speeds and pairs well with stainless steels (ISO P30–P50 / K25–K40); BMK provides exceptionally high heat resistance and smooth cutting across a broad range of materials.
• Precise nose radius for smooth cutting: The R0.1 nose radius minimizes chatter and yields repeatable surface finishes on boring and finishing passes, helping you hold tight tolerances.

Used correctly, the Carmex Tiny Tool streamlines small-bore production and finishing, improving workflow efficiency and reducing rework. Its carbide core delivers robust wear resistance, while the coating options optimize performance and lifespan for stainless steels and other common materials—making this compact boring bar a reliable choice for precise, repeatable results in busy shops.