Carmex Carbide Tiny Tool - Boring Bar is a compact, solid carbide solution designed for precision boring and versatile turning in tight spaces. With a 5.1 mm minimum diameter, 30 mm reach, and a 0.2 mm nose radius, it delivers accurate, clean features in small-diameter bores. Built for engineers, machinists, and hobbyists, this compact tool combines rigid carbide construction with coating options to extend life and improve cutting performance.

This boring bar is part of Carmex’s solid carbide family and is optimized for boring applications while remaining suitable for general turning. The BXC Grade features a PVD TiN coating for low cutting speeds and performs well with a wide range of stainless steels (ISO P30-P50 / K25-K40), helping you achieve smooth cuts and reliable results. The BMK grade in the same line uses a sub-micron structure with an advanced PVD triple coating to deliver exceptional heat resistance and consistent performance across materials.

• Small-diameter, long-reach design: 5.1 mm minimum diameter and 30 mm reach with a 0.2 mm nose radius enable precise boring in confined spaces and features with a clean finish.
• Coated carbide for extended tool life: The TiN-coated BXC Grade provides wear resistance and smoother cutting at low speeds, helping the tool last longer when working with stainless steels.
• Versatile for boring and turning: Primarily designed for boring but capable of general turning, allowing you to tackle a wide range of materials without swapping tools.

By combining compact geometry with proven carbide construction and protective coatings, this Carmex Tiny Tool delivers reliable performance, consistent finishes, and dependable life in real-world shop conditions. The tool’s small footprint, long reach, and durable coating help you complete tight-diameter features efficiently, reduce downtime, and achieve repeatable results across stainless steels and other materials.