This Metabo Angle Drilling and Screw Driving attachment makes it easier for drilling and screw driving in confined spaces. It has a spindle with hexagon recess for screwdriver bits and a bit retaining bush. It is suitable for forward and reverse rotation. This attachment has quick action coupling and gear ratio 1:1, load resistance up to 100 nm. Comes with a chuck safety bolt and hexagon nut. Aperture: 43mm Spindle Thread: ½in – 20 UNF Spindle with hexagonal recess: ¼ in (6.35mm) Weight: 0.5kg