I have been tried a lot of Sand Paper Holder but I have difficulty to stretch well the sandpaper.

This is my design witch include it's own stretcher.

The stretch mechanism is detachable and is interchangeable.

Loaded Profile is for 100*40mm.

You will need:

• 1 M3 Threaded insert
• 1 M3*20mm Bolt
• 1 M3 Bolt - length need to be same size of the width of Holder
• 1 M3 Nut

You will need to sand the “Riser” surfaces and other surfaces witch come in contact with. You need to apply a little grease to surfaces witch slide one above other (check red Marks).

For other dimensions you can write a comment and i will upload then asap.