The Carmex Carbide Tiny Tool - Threading - MIR - 55° Partial - K20 Grade is a compact, high-precision threading bar designed for tight spaces and small bores. With a 55° partial-thread profile and a 4.1 mm minimum diameter paired with a 15 mm reach, it helps you create accurate internal threads in constrained assemblies without bulky tooling.

This versatile tool line is built to perform across a wide range of materials, including stainless steels. It offers two coating options to optimize cutting performance: the BXC TiN-coated grade for low cutting speeds and dependable threading, and the BMK sub-micron grade with advanced triple PVD coating for exceptional heat resistance and smooth cutting across general-purpose applications. Together, these features deliver reliable results in demanding shop environments.

• 55° partial-threading profile for compact work: Enables precise internal threading in small bores and tight spaces, with a practical 4.1 mm minimum diameter and 15 mm reach for accessible installations.
• Dual coating options for versatile performance: Choose BXC TiN for steady cuts at lower speeds on stainless steels, or BMK with a triple PVD coating for superior heat resistance and smooth operation across a broad material range.
• Small-diameter, long-reach carbide design: Designed for tight bore access (minimum bore diameter 1.2 mm) and extended reach (15 mm), delivering durable, repeatable cuts in constrained geometries.

This tool helps you complete precision threading in limited spaces with confidence, improves workflow efficiency by reducing tool changes, and provides durable performance across materials. Its carbide construction and advanced coatings are geared toward consistent thread quality and longer tool life, so you can trust it for repeatable results in challenging assemblies.