SC. This dormakaba (formerly known as Kaba) service kit is to suit the 1000 Series digital lock and comprises of the following:-1 x Clutch Assembly1 x Standard Drive Shaft1 x Drive Shafts1 x K/O Drive Shaft1 x Combination Chamber1 x Knob Return Spring1 x Chamber Shaft Bushing1 x Stop Plate. Genuine dormakaba service kit. To suit the 1000 Series of digital locks. .