Horex-Inspection-Square-Set-5-Pieces-Horex-2144-201-The-Horex-Inspection-Square-Set-5-Pieces-have-been-manufactured-using-stainless-steel-&-designed-with-knife-edges-the-sharp-edge-making-them-ideal-for-precise-accuracy-Featured-in-the-kit-are-five-quality-pieces-including-a-scriber-that-can-be-used-for-general-purpose-marking-of-metal-parts-&-sheet-materials-Horex-Inspection-Square-Set-5-Pieces