The two-stage toothing is perfectly adjusted for the cutting of steel, non-ferrous metals and metal residues in wood. A vari pitch tooth pattern incorporating both 4, 9 & 13 tpi allows an aggressive and fast cuts. This unique tooth formation enables even cutting behaviour for metals with a thickness greater than 2.5 mm. Four cooling slots in the middle of the blade ensure optimum heat dissipation whilst cutting which makes the blade more resistant and significantly increases the working life of the ‘Shark blade’ compared to other bi-metal reciprocation blades. The thin blade format combined with reduced weight makes the Shark blade ideal for use in cordless machines ensuring users benefit from noticeably higher performance with no compromise on functionality.