Had to give the glass cutting a second try. My first attempt at a free hand hole.
I've seen bigger chips on holes done with hole saws.
That's a one inch diameter hole so those chips are very, very small.
__________________
150 gal Custom. Born 5/7/07. 50gal, 29gal, 20gal Sumps. 30gal Frag Tank. ETSS 800 Skimmer, Deltec APF600 Skimmer. PFO Solaris Lighting on Display and Frag Tank
My Tank Thread