Our Besana auto drill system is a true work horse drilling machine that allows the glass to be drilled from top and the bottom in the same process which eliminates chips and a clean precise hole each time. We are capable of 3/8", 1/2", 5/8", 3/4", 7/8", 2", 4" holes in just seconds. Please remember when sending us drawings for holes that all holes are measured to the centre of the hole or cut out.