This downloadable file is for you to print clamp stands for Bessey brand K-Body clamps using your own 3D printer and materials. You are welcome to modify the file anyway you see fit, but you are not allowed to sell any modified version of the file you download from this site.
I would recommend that you print one of the stands and then verify that your clamps fit in the slots correctly.
The screw holes in the printed stand were designed for common 1-1/4" construction screws so that you can screw the stand down to a table to hold it firmly in place. Before you do this you should insert a screw into one of the holes and verify how much of the screw will be driven into the work surface under the clamp stand. Clamps are not included in this product. Only a 3D model in stl format is available.