I used them to build a picture frame. I cut the blanks with a miter saw and level them on a flat surface. It looked perfect. When I used the clamps I didn't get the exact alignment. The pieces looked better on the table than when I loaded them into the brackets. I finally got this but was surprised the clamps didn't line up the butt better for gluing. I may have done something wrong, so I can't rule out user error, but I was expecting something better.