The metabo sbe 900 percussion drill with vario constamatic vc full wave electronics for speed stabilisation under moderate loading and a selectable impuls mode it is fitted with a thumbwheel for preselection of speed and setting the torque die cast aluminium gear housing for maximum performance even in anti clockwise rotation due to rotating carbon brush bridge two speed gear unit with a robust metabo marathon motor metabo s automatic torque limiting clutch for clockwise and anti clockwise rotat