Just checking I am doing the right thing.
I am fitting a second battery to my camper van and the cable has to go through a wooden partition which is about 25mm thick. Almost certainly a veneered board of some kind.
I was going to fit a grommet but then I realised that you don't get grommets
25mm deep as a rule.Now grommets are usually used to protect cables from sharp edges especially metal.
I propose to drill a slightly oversize hole, say 10mm to take the 9mm diameter cable. I will also slightly countersink the entry and exit holes. Under these conditions I can't see any danger of abrasion damage to the cable.
Does this sound reasonable?
Cheers
Dave R