10mm - 30mm Left Handed. This GATEMASTER Superlock Digital Single Sided has a digital keypad on one side with a rear handle for secure and convenient keyless access. The latchbolt is adjustable, with the lock available for both left handed and right handed gate applications. It is available in 2 sizes to suit 10 to 30mm gate frames and 40 to 60mm gate frames and comes with a 1 year guarantee.. One sided digital access with a rear handle. Lock available for both left handed and right handed gates. Slim 70mm wide stainless steel lock case to fit a wide range of gate applications. Stainless steel latchbolt latches 15mm into gate post