90 ° angle did not fit. Had the backstop set only. Slightly loosen the rear stopper with allen wrench and Create and set up a 90 ° angle between the blade and stop. Then the Allen screws on the rear stop retighten. I had to stop even the laser yet. For coarser woodwork Floor Laying, wooden ceiling, fence, etc. suitable. For picture frames, sidebars and other fine work not so good as the 45 ° setting does not fit very well and the included blade for such things is too coarse and the wood on average a bit Curbs back. I bought for things like a saw blade for splinter-free cuts with 80 teeth. Now it works quite well but the 45 ° grid setting does not quite fit. They must be readjusted manually. As I said for coarser things very well. I bought the saw because of the long sliding function 430 mm. For people who have a bit of manual dexterity (Adjust rear stop and readjust laser) I would recommend the crosscut saw at all times.