Carmex Carbide Tiny Tool - Boring Bar - MTL - BMK Grade - 4.1mm Minimum Diameter x 15mm Reach x R0.1 (Left Hand)

The Carmex Carbide Tiny Tool is a compact solid carbide boring bar designed for tight spaces and high-precision work. It’s ideal for engineers, machinists, and hobbyists who need reliable boring capability with the flexibility to handle general turning as well. With a 4.1 mm minimum diameter, 15 mm reach, and a left-hand R0.1 edge, it delivers controlled entry and consistent cuts in small bore applications.

This tool is offered in BMK-grade carbide, featuring sub-micron geometry and an advanced PVD triple coating for exceptional heat resistance and smooth cutting performance. It belongs to a line that also includes BXC TiN-coated bars optimized for low cutting speeds, extending versatility across stainless steels and other alloys.

• Compact bore-ready geometry: 4.1 mm minimum diameter and 15 mm reach with a left-hand R0.1 edge let you access tight bores and close contours while maintaining precise, repeatable cuts.
• BMK-grade carbide with triple PVD coating: Sub-micron carbide plus an advanced PVD coating delivers high heat resistance and smooth cutting for longer tool life across demanding materials (ISO K10–K20).
• Versatile performance for boring and turning: Primarily designed for boring but capable for general turning, suitable for stainless steels and a wide range of materials to support multiple operations without changing tooling.

This tiny boring bar streamlines your workflow by enabling accurate hole finishing in compact setups, reducing tool changes, and delivering dependable finishes across a variety of materials. Choose BMK for high-temperature, long-run performance or rely on the BXC-coated option for efficient low-speed stainless cutting, and you’ll maintain consistent results from first cut to final pass.