The Bahco 1450D-ISO is a double-ended thread file with a length of 230 mm, designed for the repair and maintenance of metric external and internal threads. This tool features a galvanized construction that ensures increased durability and corrosion resistance, making it suitable for both workshop and field use. It accommodates metric thread sizes ranging from 0.80 mm to 27 mm, including pitches of 0.80, 51.00, 6, 71.25, 8, 91.50, 10, 111.75, 122.00, 14, 162.50, 18, 20, 223.00, 24, and 27 mm. The double-ended design provides two different thread profiles on a single tool, optimizing functionality for various threading tasks. With its precise construction and robust materials, this thread file delivers reliable performance for professional mechanics, machinists, and DIY enthusiasts working with metric fasteners. The tool maintains consistent cutting performance across its specified size range and supports accurate thread restoration and cleaning tasks. Its ergonomic handle ensures a comfortable grip during extended use, while the galvanized surface contributes to long-term tool integrity in demanding environments. This product represents a practical solution for maintaining thread quality in automotive, industrial, and general maintenance contexts where metric thread standards are required.