Carmex Carbide Tiny Tool - Boring Bar is a compact, solid carbide solution designed for precision small-bore boring and general turning. With a 4.1 mm minimum diameter, a 22 mm reach, and a nose radius of R0.2, it enables clean, accurate cuts in tight spaces while delivering dependable performance across a range of materials. This tool is ideal for engineers, machinists, and hobbyists who need precise material removal in confined bores without compromising on finish.

Two coating grades are available to match your cutting conditions. The BXC Grade features a PVD TiN coating optimized for low cutting speeds and works well with a wide range of stainless steels (ISO P30-P50 / K25-K40), delivering stable performance and reduced wear in demanding environments. The BMK Grade is a sub-micron carbide with an advanced PVD triple coating, offering extremely high heat resistance and smooth cutting for general-purpose use across many materials.

• Ultra-compact boring bar geometry: Designed for small bores with a 4.1 mm minimum diameter and 22 mm reach, plus a precise R0.2 nose for controlled, high-precision cuts in tight spaces.
• BXC Grade with PVD TiN coating for stainless steels: Optimized for low cutting speeds, reducing friction and improving reliability when machining stainless steels ISO P30-P50 / K25-K40.
• BMK Grade with triple-coated sub-micron carbide: Delivers exceptional heat resistance and smooth cutting across a broad material range, supporting longer tool life and consistent results.

This tiny tool helps streamline your workflow by combining a compact, rigid design with coated grades that suit common machining scenarios. You can expect repeatable, high-quality finishes in small-diameter bores and reliable performance in general turning tasks, backed by the durability of solid carbide and purpose-built coatings.