This gizmo makes it much easier to work with a drill or screwdriver in hard-to-reach places. Now, to screw a screwdriver into furniture you don't need to find a shorter screwdriver and twist your arm into an incomprehensible shape to get to the fastener. The angle adapter will get there for you. It is an extension of the drill, but at an angle of 90 degrees.  The chuck has a clamping range of 1 to 10 mm. This way you can fit the drill bit or bit you need into the adapter to work comfortably. The adapter comes with a side handle to hold the device while drilling and a wrench to tighten the chuck.