They are suitable for jigsaws with U-shanks (universal shanks) from all power tool brands. The U 118 A Basic for Metal Jigsaw Blade makes straight cuts in metal. Its milled, wavy-set teeth are ideal for cuts without special requirements. The fully hardened, high-grade HSS (high-speed steel) blade material is appropriate for cutting standard-strength, non-perforated metal sheets. Additionally, the blades very fine progressive tooth pitch (1.1-1.5 mm) cuts very thin solid sheet metals with 1-3 mm thickness.