The Carmex Carbide Tiny Tool - Threading - MIR - 55° Partial - K20 Grade - 6mm Minimum Diameter x 22mm Reach is a compact carbide threading bar designed for precise internal threads in tight spaces. Its partial-profile 55° threading geometry is ideal for applications where standard tools won’t fit, making it a reliable choice for engineers, machinists, and hobbyists alike.

With a 6 mm minimum shank diameter and a 22 mm reach, this tool can access small bore cavities while delivering accurate, clean cuts. It’s built on a K20-grade carbide platform and supports coatings that optimize performance across a range of materials, including stainless steels.

• 55° partial-profile threading for tight internal features: Enables accurate internal threads in confined bores where full-profile tools can’t reach, improving usability in compact assemblies and hard-to-reach pockets.
• Coated carbide options for versatile performance: BXC is a PVD TiN coated grade designed for low cutting speeds and good stainless steel performance (ISO P30-P50 / K25-K40); BMK is a sub-micron grade with a triple PVD coating (ISO K10-K20) for exceptional heat resistance and smooth cutting across materials.
• Compact, long-reach design for accessibility and control: The 6 mm minimum diameter and 22 mm reach let you reach deeper threads in small machines and limited spaces, while maintaining stable, controlled cuts for reliable results.

This tool helps you complete precise internal threading efficiently, even in restricted spaces. The combination of specialized coating options and a compact form factor supports longer tool life, consistent thread quality, and reduced setup time, making it a dependable choice for production runs, repairs, or custom assemblies that demand accuracy in tight bores.