The Carmex Carbide Tiny Tool - Boring Bar is a compact, solid carbide tool engineered for precise internal boring and light turning. It features a 6.1 mm minimum bore diameter, a 15 mm reach, and a left-handed edge with a small R0.1 radius, making it ideal for tight cavities and finishing passes inside cylindrical workpieces.

Two high-performance coating options let you tailor performance to your material and cutting conditions. The BXC PVD TiN coating is optimized for stainless steels at lower cutting speeds (ISO P30-P50 / K25-K40), delivering improved wear resistance and smoother cuts. The BMK sub-micron grade features an advanced PVD triple coating for exceptionally high heat resistance and reliable performance across a broad material range (ISO K10-K20).

• Coating options tailored for stainless steels and general materials: Choose BXC TiN for stainless steels at low speeds or BMK’s triple-coated, sub-micron grade for broad material compatibility and strong heat resistance, giving you the right balance of wear life and finish for each job.
• Compact boring geometry for tight bores: With a 6.1 mm minimum diameter and 15 mm reach, plus a left-hand edge, it delivers stable, repeatable inside-diameter finishes in restricted cavities and short workpieces.
• Rigid solid carbide construction for long tool life: Built as a solid carbide bar to resist wear and deflection, providing dependable performance over extended runs and reducing tool changes.

Used for both boring and general turning tasks, this tiny tool helps you achieve consistent hole quality, smoother cuts, and longer service life. The combination of specialized coatings, precise miniature geometry, and durable carbide ensures reliable results and faster setup, so you can improve workflow, cut fewer reworks, and produce parts with tighter tolerances more efficiently.