Maurer metal jigsaw blade. Fine cut 5 pieces - Valid only for black&decker. -Fine cut hss blade. -Serrated blade length: 50 mm. -Teeth per inch: 24. -Sheet thickness: 1.0mm. -Cutting capacity:- > steel: 2.0 mm-> non-ferrous metals: 2.0 to 4.0mm.->aluminum: 2.0mm. -Article known as jigsaw blade, reciprocating saw blade.