Shaunster666

Hi, I recently started modeling in N gauge, which is going quite well apart from a persistent problem I encounter when trying to accurately drill a hole in the middle of a sleeper. Currently I use a compass point to make an indentation to stop my 0.6mm drill slipping around but I’ve found this to be a rather hit and miss system. Any suggestions for a better way to “mark” the centre of the sleeper would be much appreciated TIA Shaun ps I’d rather not use glue