The strength of round holes are amazingly strong. As long as the holes have a smooth radius w/polished off edges it should be fine. Cracks start in sharp corners and existing cracks. Fallen Arches: The Surprising Strength of Eggshells
"Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful!"
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Last edited by DelmarRey; 01-04-2012 at 06:49 PM.