Holder for hex keys and other screwdrivers mountable to the edge of an optical table.

Default parameters:

• diameter of the holes ranges from 1.5 mm to 6.5 mm, reasonable for all the hex keys normally used in optical labs. 
• distance of the mounting holes from the optical table edge is 12.7 mm (0.5")
• 175 mm length, 17 mm width, and 7 mm thickness, mounted with M6 cap screws to the optical table.

In the attached .scad file, you can change all parameters such as hole sizes, their scaling, mount type, and its length.