Chinese made clone of a quintessential US Rafter Square.
- Not accurate. Deviation is about 1,2 deg with my piece. That effectively rules out any meaningful precision work. - The lip seems welded to the main body. The small welding fillet messes up the edge alignment of the lip - Slight wobble if you lay down it down on a flat surface.
Its nevertheless a handy measuring tool for quick and rough marking/cutting on raw wood stock. Thus 3 overall stars.