The Brown & Sharpe No. 622 Universal Surface Gage is a high-quality, reliable tool for measuring the surface finish of metal parts. With a 12" spindle and a hardened base, this gage provides accurate measurements for CNC machining, metalworking, and manufacturing processes. The included box ensures convenient storage and protection when not in use. Made by the trusted brand Brown & Sharpe, this surface gage is a valuable addition to any industrial inspection and measurement toolkit.