Maurer metal jigsaw blade, extra fine cut 5 pieces - Valid for all saws except Black & Decker. -HSS blade. -Serrated blade length: 50 mm. -Teeth per inch: 32. -Sheet thickness: 1.0mm. -Cutting capacity:- > steel: 1.0 mm-> non-ferrous metals: 2.0mm.->aluminum: 2.0mm. -Article known as jigsaw blade, reciprocating saw blade.