Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precision internal work and tight-features turning. With a 5.1 mm minimum diameter, 15 mm reach, and a 0.1 mm nose radius, this tiny tool is built to access small bores and confined spaces while delivering clean, repeatable results. It’s a versatile solution for engineers, machinists, and hobbyists who value accuracy in constrained geometries.

This tool is part of a carbide bar family that offers two coating options to match your material and cutting conditions. The BXC grade uses a PVD TiN coating optimized for low cutting speeds and performs well with a wide range of stainless steels (ISO P30-P50 / K25-K40). The BMK grade is a sub-micron option with an advanced PVD triple coating, delivering extremely high heat resistance and smooth cutting for a broad material spectrum (ISO K10-K20). General-purpose BMK is suitable for diverse materials, giving you flexibility across projects.

• Compact 5.1 mm diameter for tight bores: Enables access to small-diameter holes and internal features with improved control and reduced tool overhang.
• Versatile coating options for demanding materials: Choose BXC TiN for stainless steels at low speeds or BMK’s triple PVD coating for high-heat applications and smooth cutting across a wide material range.
• Precise nose geometry for reliable finishes: R0.1 nose radius combined with a 15 mm reach delivers consistent, clean cuts in confined spaces and deep pockets.

Designed to improve workflow and outcomes, the Carmex Tiny Tool delivers dependable performance in boring and general turning tasks. Its carbide construction resists wear, the coating options reduce friction and heat buildup, and the compact geometry helps you complete difficult internal operations with confidence—minimizing tool changes and maximizing throughput.