GuideBody for Knife Sharpening Tool V2 updated for PrusaSlicer

The original model for the GuideBody1 part has a hole that is closed so it does not need supports but the height of the closing layer is not good for the default settings in PrusaSlicer at 0.2mm layer height. The closing layer is between two layers and so the hole is not closed properly.

I have changed the depth of the Hex shaped hole so it is at 2.6mm instead of 2.5mm and so it is closed properly. On the screenshot the new part is on the left.