This is a Brown and Sharpe 1.6-.8 Intrimik Inside Bore Gage Micrometer Set, made in the United States. It is a mechanical micrometer type and is suitable for business and industrial use in CNC, metalworking, and manufacturing. The set includes a bore micrometer and it is in used condition. The brand is reliable and well-known in the industry for their precision instruments. The reading is accurate and the set is perfect for measuring the inside diameter of small holes or tubes. Get this essential tool for your workshop today.