The Carmex Carbide Tiny Tool is a precision boring bar made from solid carbide. Its compact 2.5 mm minimum diameter and 10 mm reach let you work in tight bores and deep pockets while delivering clean, consistent finishes. With an R0 tip, it’s built for repeatable results across small features in a range of materials.

Two TNX-grade options tailor performance to your application. BXC is a PVD TiN-coated grade optimized for low cutting speeds and works well with a wide range of stainless steels (ISO P30-P50 / K25-K40). BMK is a sub-micron grade with an advanced PVD triple coating, offering extremely high heat resistance for maximum performance and smooth cutting; it is a general purpose solution for all materials.

• Small-diameter, deep-reach design: 2.5 mm minimum diameter with a 10 mm reach and an R0 tip let you reach tight pockets and micro-features with precise, repeatable results, reducing tool changes and improving part quality.
• Coating options for longer tool life and material versatility: Choose BXC for stainless steels at lower speeds or BMK for higher heat resistance and smoother cuts across a broad range of materials.
• Rigid carbide construction for consistent finishes: Solid carbide provides stiffness and vibration resistance, delivering reliable surface finishes and predictable performance in demanding micro-boring and turning tasks.

By combining a micro-boring bar with tailored coatings and a robust carbide body, this tool helps you finish micro features quickly and consistently, improving workflow, reducing downtime, and lowering tooling costs over repeated production runs.