The Carmex Carbide Tiny Tool – MKR, TNX Grade is a solid carbide grooving bar designed for full-radius grooves on small-diameter parts and for general turning tasks. With a 6.1 mm minimum diameter, a 1 mm groove width, and a 15 mm reach, it delivers precise radii in tight spaces and deeper pockets, making it a versatile choice for precision machining. These dimensions are optimized for reliable, repeatable grooves in a compact form factor.

Available in two coating grades to suit different materials and cutting conditions, this tool line offers proven performance across a range of applications. BXC is a PVD TiN coated grade engineered for low cutting speeds and strong compatibility with stainless steels. BMK is a sub-micron grade with an advanced PVD triple coating, delivering exceptionally high heat resistance and smooth cutting for demanding materials. Together, they provide durable, reliable performance without the need for frequent tool changes.

• Full-radius grooving geometry: Delivers precise, consistent radii on small-diameter parts and tight pockets, reducing post-processing and rework.
• Coated grade options for durability: Choose BXC for stainless steels at low speeds or BMK for high-heat, demanding materials, extending tool life and maintaining clean cuts.
• Long reach with rigid carbide core: 15 mm reach enables deep grooves and stable cutting with minimal vibration, yielding smooth finishes and dependable performance.

This tool helps you streamline workflows by delivering accurate grooves in a single pass, improving surface finish and reducing setup time. The robust carbide construction and specialized coatings resist wear across materials, providing dependable, long-lasting performance for professional shops and serious hobbyists alike.