underwater led
#5
Registered
Joined: Dec 2009
Posts: 2,480
Likes: 2
From: Wyandotte, MI
You can use a drill bit a few sizes larger than the hole you have made and run the drill in reverse to make the Chamfer. Definitely chamfer. Or you WILL have spider cracks. Maybe not right away, but the screws will create small one upon entry and before long, they will get big and ugly...






