The Carmex Carbide Tiny Tool Boring Bar is a compact, K20-grade solid carbide tool designed for precise boring and dependable turning. Ideal for engineers, machinists, and hobbyists, its small 5.1 mm minimum diameter, 40 mm reach, and R0.2 nose radius enable clean, accurate holes in tight spaces.

• Compact, precise boring bar for tight bores: With a 5.1 mm minimum diameter and 40 mm reach, this tool fits into confined cavities and long holes, reducing the need for multiple setups.
• Nose geometry for smooth finishes: The R0.2 nose radius delivers controlled chip flow and consistent surface finish with minimal chatter, even in small-diameter work.
• Coated carbide for versatile material compatibility: Choose from BXC TiN-coated grade for low-speed cutting in stainless steels (ISO P30-P50 / K25-K40) or BMK sub-micron grade with advanced PVD triple coating for high heat resistance and broad applicability (ISO K10-K20).

Designed to streamline workflows, the Carmex Tiny Tool helps you punch through small-diameter work with fewer setups and consistent results. The carbide core combined with specialized coatings delivers durable wear resistance and steady cutting performance, so you spend less time reworking parts and more time finishing projects to spec.