Using the ever so simple centre punch… If you’ve tried drilling holes in metal before you’ll remember the drill bit ‘walking’ all over the metals surface instead of starting the hole exactly where you wanted it. This is because metal is hard (I know this is free advice but Duh! Of course metal is hard, when are you going to tell me something I don’t know?) OK, so you know that metal’s hard, but did you know that if you make the tiniest of dimples in the metals surface, the …
