The T 121 GF Speed metal jigsaw blade makes fast, straight cuts in metal. The blade's bevel and thin cutting design allow for the highest cutting speeds. The patented tooth geometry and the combination of aggressive, robust teeth further increase the cutting speed. The milled, wavy teeth are designed for cutting metal sheets. The tooth strip made of hardened HSS (high-speed steel) and BIM (bimetal) is reinforced with highly elastic HCS (carbon steel), which reduces the risk of breakage and makes the blade break-resistant. This ensures sufficient strength and flexibility to cut perforated steel sheets (standard thickness). It is equipped with a very fine tooth pitch (0.8 mm) to cut very thin metal sheets with a thickness of 0.5-1.5 mm.