The Carmex Carbide Tiny Tool is a compact boring bar designed for precision work in tight spaces. Built as part of Carmex's solid carbide bar line, it delivers dependable performance for small-diameter boring and general turning, with a 4.1 mm minimum diameter, 22 mm reach, and a 0.1 mm nose radius for clean, accurate hole finishes.

This model is offered in two coating grades to suit different materials and speeds: BXC TiN-coated grade for low cutting speeds and compatibility with stainless steels, and BMK sub-micron grade with a triple PVD coating that provides high heat resistance and smooth cutting across a broad range of materials.

• Compact design for tight pockets: The small 4.1 mm minimum diameter and 22 mm reach let you reach deep and narrow bores without crowding tooling or fixtures, enabling precise holes in compact parts.
• Ultra-fine R0.1 nose radius for precise bore finishes: A tiny nose radius delivers smooth entry and close tolerance bore holes, reducing finishing passes and improving surface quality on small-diameter work.
• Coating options for durability and versatile performance: Choose BXC TiN for dependable wear resistance at low speeds on stainless steels, or BMK triple-coated grade for high heat resistance and smooth cutting across a broad material range.

Designed for repeatable results and efficient workflows, this tiny boring bar supports reliable performance in both precision fabrication and general machining. With its carbide core and protective coatings, it offers stable tool life, consistent hole quality, and the confidence to tackle demanding small-diameter operations.