The Carmex Carbide Tiny Tool is a micro-threading solution designed for precise, left-hand threads in very small bores. Part of a versatile line of partial-profile threading bars, it features a MIL 60° partial profile and is compatible with 55° profiles for flexible, real-world applications.

With a compact 5.1 mm minimum diameter and 15 mm reach, it excels in tight spaces and micro-threading tasks. The tool supports minimum bore diameters down to 1.2 mm (0.05 inch). Coatings are offered to optimize performance: BXC is a PVD TiN-coated grade tailored for low cutting speeds and wide stainless-steel compatibility (ISO P30-P50 / K25-K40); BMK is a sub-micron grade with a triple PVD coating for extremely high heat resistance and smooth cutting, suitable as a general-purpose option for all materials (ISO K10-K20).

• Micro threading for tiny bores: Designed for small-diameter work, it handles bores as small as 1.2 mm with a 5.1 mm shank diameter and 15 mm reach, enabling precise left-hand threads in confined spaces.
• Coating options for durability and efficiency: Choose BXC TiN for stainless steels at low speeds, or BMK’s triple PVD coating for high heat resistance and smooth cutting across a broad material range.
• Flexible profile compatibility: Features a MIL 60° partial threading profile with compatibility to 55° profiles, delivering reliable results across multiple materials and common threading standards.

This tool helps you complete micro-threading tasks faster and more consistently by combining a compact, capable geometry with coatings engineered for real-world cutting conditions. The result is improved thread quality, reduced downtime, and dependable performance across materials—from stainless steels to general-purpose applications—making it a trusted companion for engineers, machinists, and hobbyists working in tight or intricate assemblies.