* Diamond Drill Bits - Core drill bits available in 1/8", 1/4", 3/8", 1/2", 1", 1. 5", 1. 75", 2" and 3" sizes.

* Shaft fits standard power drills for boring holes in glass.

* Use with water to protect bit and keep glass cool.

* Great product for hanging glass and for sinks

* If using a home drill, to drill successfully into glass your drill must be able to do 2000 revolutions per minute (rpm).