Variable speed model allows stepless control of drilling speed between minimum and maximum enabling finer control of finish and tolerance.The belt transmission uses two spring tensioned cone pulleys, the diameter of which can be adjusted by moving a centre idle pulley with the speed adjustment control lever.Safety devices fitted include a no-volt release switch, allowing insurance company approval for use in educational establishments.Supplied with chuck guard.Mortise attachment available, order Model No. MA10.16mm(5/8") Capacity chuck No. 2MT.Height: 1630mm. Spindle Centre to Column: 178mm.Motor Power: 450W, Input Power: 650W.Column Diameter: 80mm.Spindle Travel: 80mm.Weight: 71kg.This item is heavy. Extra assistance must be provided at the delivery point to help its safe delivery.