Suits 10mm to 30mm Gate Frames. The Gatemaster Superlock deadlock is simply operated with the turn of a key. The slim 70mm wide lock case makes it easy to fit on most gates and being non handed it is ideal for both left or right hand gates.. Simple deadlocking action – the lock is opened and closed with a key. Slim design – the 70mm wide lock case makes it easy to fit on most gates. Adjustable deadbolt moves 15mm in length for precise fitting. Non handed