Parametric set of spanners

This is a set of metric spanners that can be printed out.
The original Alibre Design files are attached. By modifying the parameters you can create any size you desire.

* light duty = thin, solid tools
* medium duty = thick, hollow tools
* heavy duty = thick, solid tools

details:
* rounded edges where the hand may touch
* slanted edges for the nut
* size is +0.1mm (M8=8.1mm side length)