Meet the Carmex Carbide Tiny Tool – a compact, solid carbide boring bar built for small-diameter work and reliable general turning. Designed for engineers, machinists, and hobbyists alike, it delivers stable, repeatable cuts in tight spaces. With an 8.1 mm minimum diameter, a 22 mm reach, and a nose radius of R0.2, this tool balances accessibility with rigidity for precise bore machining.

This line features TNX Grade carbide bars with coating options tailored to material and speed. BXC TiN-coated grade is optimized for low cutting speeds and works well with a broad range of stainless steels (ISO P30-P50 / K25-K40). BMK is a sub-micron grade with an advanced PVD triple coating, offering excellent heat resistance and smooth cutting across materials—making it a solid general-purpose choice.

• Compact 8.1 mm minimum diameter: Enables accurate boring in tight bores and small-part features while maintaining tool stiffness for reliable cuts.
• 22 mm reach for deep features: Gives you access to deep pockets and longer internal contours without frequent tool changes or re-fixturing.
• Coated carbide options for versatile performance: Choose BXC TiN coating for stainless steels at low speeds or BMK triple-coated grade for high heat resistance and smoother cutting; designed to maximize tool life and consistent results across materials.

This carbide tiny tool helps you complete challenging, space-constrained machining with confidence. The combination of a rigid carbide body, precise geometry, and thoughtfully matched coatings translates to better surface finishes, fewer tool changes, and a smoother, more predictable workflow across a range of materials.