I am trying to run a cable down through a stud wall, and there is a 'nogging' blocking my path. I have heard of long drills specially for this sort of job, but I can't find one. I thought of making one up, but I'm scared it might 'appear' out of the plasterboard knowing my luck. Does anyone know what I'm talking about, or more importantly know where I can get a wood boring bit about 1m long? Preferably that will fit an electric drill.