The Carmex Carbide Tiny Tool - Boring Bar (MTR - K20 Grade) is a compact, solid carbide bar designed for precision boring and reliable turning in tight spaces. With a 1.2 mm minimum diameter, 7 mm reach, and an R0 cutting edge, it enables clean starts and accurate bore geometry on small-workpiece features. This tiny tool is built to perform in challenging setups, making it ideal for engineers, machinists, and hobbyists who value precision in limited-space operations.

• Ultra-compact bore capability: Precisely engineered for tiny bores with a 1.2 mm minimum diameter and 7 mm reach, plus an R0 edge for clean, starting cuts and tight tolerances.
• Coating options for versatile performance: Choose between BXC with PVD TiN coating for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40), or BMK with sub-micron, triple PVD coating for high heat resistance and smooth cutting (ISO K10-K20). These options expand compatibility across materials and speeds.
• Durable carbide, general-purpose design: Solid carbide construction supports boring and general turning, delivering reliable results across a broad range of materials, including stainless steels, with longevity and consistent performance.

This tiny tool is built to enhance your workflow: it handles precision boring in tight cavities and also covers general turning duties, reducing setup time and rework. The coating options help manage heat and wear for longer tool life, while the compact geometry enables access to hard-to-reach features. For shops needing dependable small-diameter tooling that delivers repeatable results, this MTR K20-grade boring bar provides a confident, one-tool solution.