This is a handle made to replace the weak stock ones that broke on my exterior window bug screens. It fits 1.5-2.5cm wide frames. But i'm sure it could be adapted to most anything. Holes are 25mm apart. Printed on RapMan 3.2 using 3mm ABS, 0.25mm layer height, 2 extra shells, 50% infill (although there's not much room for infill left using these settings :P). The print in the picture was dipped in acetone for 20s. I recommend printing it on a side for added toughness.