The Carmex Carbide Tiny Tool – Boring Bar is a compact, solid carbide bar designed for tight bores and small-diameter workpieces. Built for MTR TNX grade, it features an 8.1 mm minimum diameter, 15 mm reach, and a precise R0.2 nose radius, delivering dependable boring performance while also handling general turning on small features or prototypes.

This tool line offers two coating grades to suit different materials and speeds: BXC is a PVD TiN-coated option optimized for low cutting speeds and stainless steels (ISO P30–P50 / K25–K40); BMK is a sub-micron grade with a triple PVD coating for exceptional heat resistance and smooth cutting across a wide range of materials.

• Coating options for versatility: BXC is optimized for low-speed cutting and stainless steels, reducing friction and wear to extend edge life in demanding applications.
• Extreme heat resistance for demanding work: BMK’s sub-micron, triple PVD coating delivers high temperature tolerance and smooth cutting, supporting durable performance across materials.
• Compact geometry for tight bores: With an 8.1 mm minimum diameter, 15 mm reach, and an R0.2 nose radius, this tool accesses confined features and delivers clean, accurate finishes.

Together, these characteristics help you complete tight bores and small turning operations with confidence, improve part finish consistency, and reduce tool changes and downtime. The Carmex Tiny Tool offers reliable performance in both routine and challenging tasks, making it a dependable addition to any machining setup.