The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for internal boring and precise turning tasks. With a 7.1 mm minimum diameter, 30 mm reach, and a left-hand orientation with an R0.2 corner, it delivers stable cuts in tight bores and hard-to-reach workpieces—making it ideal for engineers, machinists, and hobbyists alike.

This tool family offers two high-performance coating options. The BXC grade features a PVD TiN coating optimized for low cutting speeds and compatibility with many stainless steels, while the BMK grade uses an advanced PVD triple coating for exceptional heat resistance and smooth cutting across a wide range of materials.

• Slim, precise geometry for tight bores: The 7.1 mm minimum diameter, 30 mm reach, and left-hand R0.2 corner provide stable, accurate cuts in confined internal bores and enable versatile turning tasks with minimal setup changes.
• Dual-grade PVD coatings for versatile material handling: BXC TiN coating is optimized for low-speed cutting of stainless steels (ISO P30-P50 / K25-K40), while BMK’s sub-micron grade with triple PVD coating delivers strong heat resistance and smooth cutting across a broad material spectrum.
• Durable solid carbide construction for long tool life: Built around a robust carbide core, this boring bar delivers rigidity and wear resistance for consistent performance and fewer tool changes in demanding boring and turning applications.

By combining precise geometry, versatile coating options, and a rugged carbide body, this tiny boring bar helps you finish internal features faster, achieve cleaner finishes, and extend tool life. It supports efficient workflows across stainless steels and other materials, giving you reliable results and confidence in every part you manufacture.