Carmex Carbide Tiny Tool - Boring Bar - MTL - BMK Grade - 3.1mm Minimum Diameter x 15mm Reach x R0.05 (Left Hand)

The Carmex Carbide Tiny Tool is a compact, solid carbide boring bar designed for precise internal boring and light turning tasks. With a 3.1 mm minimum diameter, 15 mm reach, and an R0.05 corner radius, it’s tailored for small features, tight pockets, and left-hand machining setups. Its precision geometry helps you achieve clean, consistent finishes in limited spaces.

This tool line is offered in two advanced coated grades to cover a broad range of materials. BXC is a PVD TiN-coated grade optimized for low cutting speeds and performs well with stainless steels (ISO P30-P50 / K25-K40). BMK is a sub-micron grade with an advanced PVD triple coating (ISO K10-K20), delivering extremely high heat resistance for maximum performance and smooth cutting across many materials, making it a reliable general-purpose option.

• Two optimized coating grades for broad material compatibility: BXC (PVD TiN) extends tool life and maintains steady performance on stainless steels at low speeds, while BMK (sub-micron, triple PVD) provides high heat resistance for tougher materials and general-purpose use.
• Compact geometry for tight bores: 3.1 mm minimum diameter with a 15 mm reach and R0.05 corner radius enables access to small internal features while delivering clean, reliable finishes.
• Left-hand configuration for easy setup: Designed for left-handed cutting applications, aligning with common turning setups to reduce setup time and improve cutting stability.

Whether you’re fabricating small-diameter parts, performing precision boring, or completing routine turning tasks, the Carmex Tiny Tool delivers dependable performance with durable carbide and coatings designed for real-world machining. Expect consistent results, longer tool life under appropriate conditions, and a smoother workflow from first cut to finish pass.