Carmex Carbide Tiny Tool - Boring Bar - MTR - TNX Grade - 4.1mm Minimum Diameter x 22mm Reach x R0.2

The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar engineered for precise internal boring and small-diameter turning. With a 4.1 mm minimum diameter, a 22 mm reach, and an R0.2 radius, this tool delivers tight tolerances and clean, consistent holes in challenging materials. Designed for machinists who value reliability in confined bores, it excels in stainless steels and other tough workpieces while fitting into tight tooling envelopes.

Available in MTR with TNX grade coatings, this tiny tool offers two optimized coating options to match your material and cutting conditions. Choose BXC TiN for smooth, low-speed cuts on stainless steels (ISO P30–P50 / K25–K40), or BMK with an advanced PVD triple coating for exceptional heat resistance (ISO K10–K20) and smooth cutting action across a broad range of materials. These coatings help reduce wear, extend tool life, and maintain stable performance even under demanding production schedules.

• Compact bore geometry for tight tolerances: 4.1 mm minimum diameter with a 22 mm reach and R0.2 corner radius enables precise, repeatable bores in confined spaces and deep pockets.
• Coatings tailored for versatility and durability: BXC TiN coating optimizes low-speed cuts on stainless steels, while BMK triple PVD coating delivers high heat resistance for tougher materials and longer tool life.
• Rigid carbide construction with dependable performance: Solid carbide core provides consistent cutting action, reduced chatter, and reliable results in both boring and general turning applications.

This tiny tool is designed to streamline your workflow: it fits into limited tooling setups, delivers accurate bore sizes, and maintains stable performance across common machining scenarios. Its proven geometry and coating options help you finish parts faster, reduce downtime for tool changes, and achieve repeatable surface finishes on a variety of materials.