The Carmex Carbide Tiny Tool - Boring Bar is a compact, solid carbide tool designed for precision boring on small-diameter workpieces while also handling general turning tasks. It features a minimum diameter of 7.1 mm, a reach of 22 mm, and a nose radius of R0.2, delivering stable, accurate cuts in tight pockets and restricted spaces.

Available in BMK Grade and BXC coating options, this carbide bar covers a wide range of materials and cutting conditions. BMK is a sub-micron grade with advanced PVD triple coating for high heat resistance and smooth cutting, making it a versatile choice for many materials. BXC is a PVD TiN coated grade designed for low cutting speeds and excels with stainless steels (ISO P30-P50 / K25-K40), providing reliable performance in demanding stainless applications.

• Ultra-compact boring bar geometry: The tool’s compact form—7.1 mm minimum diameter, 22 mm reach, and R0.2 nose—delivers stable, precise cuts in tight bores and delicate features, even in restricted spaces.
• Coating options for versatile performance: BMK Grade offers high heat resistance and smooth cutting for broad material coverage, while BXC TiN enhances performance at low speeds and with stainless steels.
• Durable carbide construction: Solid carbide construction provides excellent wear resistance and long tool life, supporting consistent bore quality and reliable performance across applications.

This tool helps you achieve precise, repeatable bore geometry with minimal downtime thanks to its long tool life, while maintaining dependable performance across materials—from stainless steels to other alloys—making it a practical, trustworthy choice for CNC and manual turning alike.