The Carmex Carbide Tiny Tool is a compact solid carbide boring bar designed for precise internal work and small-diameter turning. With a 7.1 mm minimum diameter, a 30 mm reach, and a precise R0.2 corner radius, this tool delivers clean, accurate cuts in confined bores. It is part of a dual-grade coating family—BXC TiN-coated for low-speed cutting on stainless steels and BMK sub-micron grade with a triple PVD coating for high-heat performance. The left-hand version is tailored for common boring setups, helping you maintain consistent chip control and reliable results.

• Coating options engineered for different materials: Choose between BXC TiN for low cutting speeds on a wide range of stainless steels (ISO P30-P50 / K25-K40) or BMK with a sub-micron grade and triple PVD coating for excellent heat resistance and smooth cutting (ISO K10-K20). This selection lets you maximize tool life and predictable results across varying jobs.
• Small-diameter, deep-reach borings: The 7.1 mm minimum diameter with a 30 mm reach enables you to access deep internal features and tight bores without sacrificing rigidity, delivering accurate profiles and minimized deflection in challenging workpieces.
• Left-hand geometry for efficient, stable cutting: Designed for left-hand boring applications, the edge geometry and R0.2 corner radius promote steady cutting, reliable surface finishes, and consistent chip control across materials.

This carbide tiny tool helps you complete precise internal passes faster, with consistent quality from start to finish. The dual-grade coating options let you tailor performance to your material and machine speed, while the compact size and left-hand geometry improve workflow in restricted setups. Whether you’re finishing delicate stainless parts or tackling general-purpose boring and turning, this tool offers dependable rigidity, longer tool life, and smoother cuts that reduce re-cutting and downtime.