Carmex Carbide Tiny Tool - Boring Bar - MTR - TNX Grade - 2.1mm Minimum Diameter x 10mm Reach x R0.15 is a compact solid carbide bar designed for micro-boring and precise turning on small parts. Its small footprint and exact geometry make it ideal for tight bores and finishing passes where space is limited, delivering consistent cuts and reliable performance in busy shops.

The tool family offers two TNX-grade options to match material and speed needs: BXC TiN-coated bars optimized for low cutting speeds and broad stainless steel compatibility, and BMK sub-micron bars with a triple PVD coating for exceptional heat resistance and smooth cutting across materials. These coatings help reduce wear, improve surface finish, and extend tool life.

• Versatile coating options for broad material compatibility: Choose BXC TiN-coated bars for low-speed cutting that works well with a wide range of stainless steels (ISO P30-P50 / K25-K40), providing dependable performance across common machining tasks.
• High-heat BMK grade with triple PVD coating: The BMK sub-micron grade delivers extremely high heat resistance and smooth cutting, enabling steady performance and longer runs on demanding materials.
• Ultra-compact geometry for tight bores: With a 2.1 mm minimum diameter, 10 mm reach, and an R0.15 corner radius, this tool reaches confined cavities and delivers clean bore finishes with precision.

These solid carbide bars are built for boring and general turning, offering dependable strength, consistent results, and long tool life in a compact form. The combination of robust carbide and specialized coatings helps you maintain productive workflows, reduce downtime, and achieve repeatable, high-quality finishes on small-diameter workpieces across a range of materials.