Bought for professional use. The tool is handy. If necessary, you can work without a stop, with the tip of the blade, holding with both hands. I sawed an iron eye for a padlock with a thickness of about four mm. Used saber blades Bosch, Milwaukee, Morse. Replacing the sheets is no problem. I installed jigsaw blades but haven't used them yet. There was no need. It takes some getting used to putting them on the instrument. The reverse strike does not lead to critical consequences. The tool is fully functional.