High frequency hardening. Clean and precise curved cutting, idea for hardwood, softwood, laminated boards Made from high-speed steel.Straight cutting for thin materials; Idea for thin sheel metal, nonferrous metal, Aluminum. For:Bosch, Metabo, Dewalt, Makita, AegFesto, Holzher, Kress, Elu, Skil........ Teeth Distance: 1.2mm(21 tpi)Working Length: 50mm(2'')Total Length (75mm(3'') Jigsaw Blade set ...