The Carmex Carbide Tiny Tool is a precision internal-threading solution designed for small bores and 55° partial-profile threads. It’s ideal for engineers, machinists, tradespeople, and hobbyists who need reliable, repeatable thread formation in tight spaces.

With a 5.1 mm tool diameter and a 15 mm reach in a left-hand orientation, it can form threads in bores as small as 1.2 mm (0.05 in). The tool supports stainless steels and a wide range of materials, featuring two coating families—BXC TiN for low cutting speeds and BMK with a sub-micron, triple PVD coating—for versatile performance across ISO ranges (P30-P50 / K25-K40 for stainless steels; K10-K20 for general/high-heat applications).

• 55° partial-profile threading compatibility: engineered to form precise threads with 55° profiles, delivering consistent engagement and high-quality results in restricted spaces.
• Versatile coating options for broad material range: BXC TiN coating excels at low-speed threading of stainless steels, while BMK’s sub-micron, triple-PVD coating provides excellent heat resistance and smooth cutting across a wide range of materials.
• Narrow-bore reach with left-hand threading: 5.1 mm tool diameter and 15 mm reach in a left-hand configuration enable inside threading in tight bores, down to 1.2 mm diameter, with reliable access to hard-to-reach features.

The Carmex Tiny Tool delivers consistent, clean internal threads in challenging parts, helping you reduce setup time and minimize tool changes. Its carbide construction and advanced coatings are designed for durable performance on stainless steels and other materials, making it a dependable choice for precise, repeatable results in compact, confined spaces.