These sturdy stainless steel Set Squares can be used for drafting, cutting and measuring to create precise angles within your work. Simply lay them flat on your page and feel assured you are accurately sketching. One edge on each is beveled, allowing you to use it as an accurate guide for technical drawing, architectural blueprints and model building. The Set Squares are precision-milled from 2 mm-thick stainless steel and have screwed-in knurled brass knobs. One pair, in Small or Large.