This Carmex Carbide Tiny Tool Boring Bar is a compact solid carbide tool designed primarily for precision boring, with the versatility to handle general turning tasks. Its tiny geometry—0.3 mm minimum diameter, 1.2 mm reach, and an R0 nose—lets you access tight bores and small features with confident, clean entry.

• Ultra-compact bore capability (0.3 mm Ø, 1.2 mm reach, R0 tip): Access tight bores and small features with precise entry and exit, improving hole quality and reducing setup time.
• Coated carbide grades for durability and versatility: Choose BXC TiN-coated grade for low cutting speeds and stainless steels (ISO P30-P50 / K25-K40), or BMK sub-micron grade with triple PVD coating for exceptional heat resistance and a smoother cut, extending tool life.
• General-purpose performance across materials: Designed for boring as the primary use, with strong general turning capability, enabling reliable results across a wide range of materials and reducing the need for tool changes.

This tiny carbide bar helps you finish parts more efficiently: precise, repeatable bores in tight spaces, longer tool life from durable coatings, and the flexibility to tackle both boring and turning tasks with a single tool. By enabling fast setups, cleaner finishes, and fewer tool changes, it supports improved throughput and consistent results in small-diameter work and stainless steels.