Carmex Carbide Tiny Tool - Threading - MIL - 55° Partial - BMK Grade - 4.1mm Minimum Diameter x 15mm Reach (Left Hand) is a compact, precision threading tool designed for tight bores and confined spaces. Its left‑hand orientation supports a range of applications, while its 4.1 mm minimum diameter and 15 mm reach are optimized for partial‑profile 55° threads. With a minimum bore diameter of 1.2 mm (0.05 in), this tool helps you create accurate threads in small components without guesswork.

Built for durability and consistent performance, the BMK grade uses sub‑micron carbide with an advanced PVD triple coating to deliver extremely high heat resistance and smooth cutting operation. This combination provides reliable thread quality across materials and environments, making it a dependable choice for both production and hobbyist setups.

• BMK-grade sub-micron carbide with triple PVD coating: Advanced coating delivers exceptional wear resistance, high heat tolerance, and smooth cutting for long tool life and predictable results.
• 55° partial-profile threading compatibility: Engineered to form precise 55‑degree threads in partial-profile bores, reducing rework and ensuring consistent thread form.
• Left-hand threading with compact reach: 4.1 mm minimum diameter and 15 mm reach with left-hand orientation to access tight features and simplify setup in restricted spaces.

With this tool, you gain a compact, reliable threading solution that delivers consistent thread quality in confined spaces, minimizes downtime, and supports efficient production or hobbyist workflows. The BMK-grade carbide, advanced coating, and designed geometry work together to ensure dependable performance across materials, helping you complete threaded parts with confidence and precision.