·Toughened glass cannot be drilled or any other processed and edgeworked in any manner.
·Toughened glass ordered to templates must be accompanied with a full scale template made to the

correct dimensions.
·Minimum edgework finish on toughened glass up to 12mm is a standard arrissed edge. Minimum

edgework on greater thicknesses should be a flat ground edge;
·Slight distortion or bowing may occur after toughening but is largely controllable. It will vary with

substance, tint, surface treatment, size and shape of the glass. Ceramic painted, sandblasted or

reflective coated glass has a greater tendency to bow and special tolerances would be advised.

Flatness will be measured when the glass is standing on edge with a straight edge placed along the

full length of the panel and a wedge measurement taken at the centre position. Refer to our technical

department for more information.