Carmex Carbide Tiny Tool is a compact boring bar built from solid carbide, engineered for precise bore work and dependable turning on small features. While designed primarily for boring, its rigid carbide construction delivers reliable results in a variety of turning tasks, making it a versatile choice for machinists, shop floors, and hobbyists working in tight spaces.

This BMK Grade variant uses a sub‑micron carbide with an advanced PVD triple coating (ISO K10–K20) to maximize heat resistance and deliver smooth cutting across materials. It features a 4.1 mm minimum diameter, 15 mm reach, and a left‑hand geometry with an R0.2 radius to fit compact bores and maintain controlled chip flow.

• BMK Grade: Sub-micron carbide with triple PVD coating (ISO K10–K20): Delivers extremely high heat resistance and smooth cutting, helping extend tool life and maintain consistent tolerances even during longer cuts.
• Compact 4.1 mm Ø with 15 mm reach (left-hand): Fits into tight bores and reaches narrow features while providing predictable chip flow for cleaner, more accurate cuts.
• General-purpose performance across materials: Designed for boring and general turning, this bar handles a wide range of materials with reliable results and fewer tool changes.

With the Carmex Tiny Tool BMK boring bar, you get repeatable bore quality, longer tool life thanks to advanced coatings, and improved workflow in tight spaces. The compact diameter, defined reach, and left-hand geometry help you complete intricate features faster, while the versatile BMK grade ensures stable performance across different materials, supporting consistent results and efficient production.