To save me going through the trial and error stage (I can only eat so many Altoids), what is the best way to drill a matrix of neat 5mm holes in the lid of an Altoids tin? Centres will be 12.5mm (1/2") so reasonable gap between.
How do you clamp and support the tin without bending it?
What drill speed do you use?
Drill pilot holes?
Drill from the inside or outside?
I have a bench drill and usual workshop stuff available.