The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precision in tight spaces. With a 5.1 mm minimum diameter, 40 mm reach, and a 0.2 mm corner radius, it delivers clean, accurate cuts in small-diameter bores and light turning work.

Available in BMK and BXC coated grades, this tool offers versatility to match material and speed requirements. BXC is a PVD TiN-coated grade optimized for lower cutting speeds and is particularly effective when machining stainless steels (ISO P30-P50 / K25-K40). BMK is a sub-micron grade with a triple PVD coating that delivers exceptional heat resistance and smooth cutting across a wide range of materials (ISO K10-K20).

• Small-diameter, long-reach design: Access tight bores and confined spaces without sacrificing rigidity, enabling precise holes and clean tool paths.
• Two coated grades for broad material coverage: Choose BXC for stainless steels at low speeds or BMK for high-heat, mixed-material applications—no tool swap required.
• R0.2 corner radius for better finishes: The precise corner radius helps minimize burrs and chatter, delivering smoother exits and better surface quality on small-diameter parts.

This tiny boring bar helps you complete intricate boring and turning tasks with confidence. Its solid carbide core and specialized coatings support consistent hole sizes, improved finish, and longer tool life, reducing downtime and boosting productivity in both professional shops and hobbyist setups.