Overall this is a really good combo square and well worth the money. It has a well machined cast iron head and an easy to read brushed stainless steel ruler. The center finder is a really nice addition too and I love that with this tool I really only have to pick out three nits: 1) The blade isn't 100% perpendicular to the head. When checking with my machinist's angle there is a streak of light where the blade meets the head BUT I can't put a 0.0015 inch (1-1/2 mil) feeler gauge in the gap. For the size of this square this is acceptable to me and easily fixed with a little work 2) They taped a bit carelessly when setting the spirit level and there is a thin spot on one side of the bottle but that doesn't affect the usefulness of the bottle affect. 3) The center finder isn't "quite" 90Β°, but as long as the ruler is centered it doesn't matter. Overall I am very happy with this set and the quality. It's very good and for less than half the price of a PEC or Starrett. Would recommend. at 1/64". Since one side was long I was able to easily fix mine and still recommend this square.