Carmex Carbide Tiny Tool - Boring Bar - MTR - TNX Grade - 4.1mm Minimum Diameter x 15mm Reach x R0.2

The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precision small‑diameter bores and refined turning tasks. With a 4.1 mm minimum diameter, 15 mm reach, and a 0.2 mm nose radius, it fits into tight spaces while delivering clean, consistent cuts on CNC lathes and manual machines.

Two TNX-coated grades give you versatile performance to match material and speed conditions. BXC is a PVD TiN coated grade optimized for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40), while BMK is a sub‑micron grade with a triple PVD coating for high heat resistance and smooth cutting across a broad range of materials (ISO K10-K20). This makes the tool a reliable choice for both stainless work and general turning without swapping tooling.

• Miniature precision for tight bores: 4.1 mm minimum diameter, 15 mm reach, and a 0.2 mm nose radius enable accurate holes and a clean finish in confined spaces, reducing the need for secondary operations.
• Two TNX-coated grades for versatile material handling: Choose BXC for efficient cutting at low speeds in stainless steels, or BMK for high heat resistance and smooth cutting across a wide material range, all with wear‑resistant coating protection.
• Durable carbide with reliable performance: Solid carbide construction delivers long tool life and consistent cutting action, even in demanding jobs, with coatings that help minimize wear and maintain finish quality.

This tiny tool helps you achieve precise, repeatable bores and smooth finishing across multiple materials, while minimizing tool changes and downtime. Its compact geometry reduces deflection in tight cavities, and the dual-grade coatings extend life in real-world production, making it a dependable choice for engineers, machinists, and hobbyists seeking reliable, accurate results.