Carmex Carbide Tiny Tool - Boring Bar - MTR - BMK Grade - 5.1mm Minimum Diameter x 22mm Reach x R0.1

The Carmex Carbide Tiny Tool is a compact carbide boring bar engineered for precision internal boring and light turning. With a 5.1 mm minimum diameter, a 22 mm reach, and a fine R0.1 nose radius, it fits into tight bores and small-feature work while delivering consistent, smooth cuts.

Available in two coating grades to match material and speed requirements: BXC TiN-coated for reliable cutting at lower speeds and strong performance with stainless steels (ISO P30–P50 / K25–K40); and BMK, a sub-micron grade with a triple PVD coating for exceptional heat resistance and smooth cutting across a wide range of materials (ISO K10–K20).

• Small-diameter precision with extended reach: The 5.1 mm minimum diameter and 22 mm reach allow accurate boring in confined spaces while maintaining consistent diameters and surface finish.
• Two coating options tuned for material and speed: BXC TiN supports reliable cuts at low speeds on stainless steels; BMK’s sub-micron, triple-PVD coating provides high heat resistance and smooth cutting for a broad material range.
• Durable carbide construction with a fine nose radius: Solid carbide offers rigidity and long tool life, and the R0.1 nose radius enables clean, precise finishes on small bores while reducing chatter.

Designed to integrate into standard turning and boring setups, the Carmex Tiny Tool helps you complete tight internal features with confidence. Its robust carbide construction and optimized coatings reduce tool changes, improve surface finish, and keep tolerances tight—saving time and material waste while delivering reliable results across stainless steels and other alloys. Whether you’re an engineer, shop floor technician, or hobbyist, this tool provides dependable performance when every fraction of a millimeter counts.