Carmex Carbide Tiny Tool - Boring Bar - MTR - TNX Grade - 7.1mm Minimum Diameter x 30mm Reach x R0.2

The Carmex Carbide Tiny Tool is a solid carbide boring bar designed for precise internal work and general turning. Its compact 7.1 mm minimum diameter, 30 mm reach, and R0.2 nose radius let you access slender bores and tight pockets while delivering stable cuts and smooth finishes.

Available in TNX-grade options, this tool pairs with two coating choices to match material and speed needs. The BXC variant uses a PVD TiN coating for reliable performance at lower cutting speeds and works well with stainless steels. The BMK variant uses a sub-micron grade with an advanced PVD triple coating, delivering high heat resistance and smooth cutting for a broad range of materials.

• Compact bore bar geometry (7.1 mm Ø, 30 mm reach, R0.2): Enables access to slender bores and deep internal features while preserving edge strength and delivering a clean finish in tight spaces.
• Coating options for versatile material performance: BXC TiN supports low-speed cutting and stainless steels; BMK’s sub-micron grade with triple coating provides high heat resistance and smooth cutting across a wide range of materials.
• TNX-grade carbide for reliable, long-lasting use: Solid carbide construction (MTR TNX grade) delivers rigidity and wear resistance for repeatable boring and turning tasks over many cycles.

By combining a compact geometry with coating-optimized TNX-grade carbide, this tiny tool reduces setup time and tool changes while delivering consistent results from start to finish. The dual coating options help resist wear and heat, enabling longer runs and reliable performance on stainless steels and other materials. For small-diameter bores or precision general turning, this tool provides dependable, ready-to-run performance that supports tight tolerances and high-quality finishes.