The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precise internal boring and general turning. With a 4.1 mm minimum diameter, a 15 mm reach, and a nose radius of R0.1 on a left-hand geometry, it’s built to access tight pockets and deliver clean, repeatable finishes. Crafted from MTL K20 grade carbide, this tiny tool combines rigidity with reliable cutting performance for small-diameter workpieces.

This versatile boring bar is coated to handle a wide range of stainless steels and other materials. It features two coating options to suit different cutting needs: BXC TiN-coated grade optimized for steady performance at lower speeds, and BMK sub-micron grade with an advanced PVD triple coating for exceptional heat resistance and smooth cutting. These coatings help extend tool life and maintain consistent results across challenging jobs.

• Rigid carbide construction for consistent boring and turning: Solid K20-grade carbide provides stiffness and long tool life, delivering stable dimensions and reliable finishes in small-diameter bores.
• Coatings for versatility and heat resistance: BXC TiN coating supports low-speed cutting on stainless steels, while BMK triple-coated grade offers excellent heat resistance for demanding applications, reducing wear and chatter.
• Compact, precise geometry for tight bores: 4.1 mm minimum diameter, 15 mm reach, and left-hand orientation enable deep access in confined spaces with precise alignment and clean chip flow.

Designed to improve your workflow, this tiny boring bar helps you complete intricate bore work with fewer tool changes and consistent results. The combination of small-diameter reach, reliable K20 carbide, and purpose-built coatings delivers dependable performance across a range of materials, making it a trusted choice for engineers, machinists, and hobbyists who demand accuracy and efficiency in tight tolerances.