The Black & Decker Jigsaw has a range of useful features for improved cutting performance. The variable speed function allows for cutting of different material thicknesses, control is also optimised by an ergonomic design with a low vibration factor during operation. The improved transmission delivers a consistent cutting rate under stress for greater cutting accuracy precision is also augmented by the jigsaw's blower function, which aids guidance by pushing dust away from the cutting line. Additional benefits include the lock on switch, which increases comfort during extended use and a quick and easy keyless blade change system. There is also a robust protective cover that has been constructed to not obscure the cutting surface. Specification Input Power: 520W Strokes at No Load: 0-3,000/min. Stroke Length: 19mm Cutting Angles: 0 , 45 Capacity: Steel 5mm, Aluminium 15mm, Wood 70mM