The S 522 EF Flexible for Metal Reciprocating Saw Blade is designed for use with compact saws and features a 1/2 inch universal shank. Its fine tooth pitch (1.4 mm) cuts sheet metal with most common thicknesses. Moreover, the bi-metal blade is engineered for long lifetime when cutting regular-strength sheet steel. Its fine tooth pitch enables cutting medium-thick sheet metal with a thickness of 1.5 mm to 4 mm. The blade’s short length (100 mm) has a cutting capacity up to 50 mm, while it is also ideal for use with cordless compact saws.