The narrow-back staples 1.2/18 g are hardened and feature a chisel tip, making them suitable as fasteners for a variety of indoor applications. They are ideal for securing thermal insulation materials, gypsum fiberboards, upholstery, steps, and railings. The staples can also be used for building fences and for door, window, and picture frames, as well as for securing wooden floors. The narrow back is particularly well-suited for decorative tasks, as it is driven deep into the wood and is almost invisible. The staples are also galvanized for corrosion protection. They are manufactured in Europe to ensure consistently high quality. They are compatible with the Bosch GTK 40 Professional pneumatic nailer. Type: TK40 25G, Width (B) mm: 5.8, Thickness (D) mm: 1.2, Length (L) mm: 25.