Selling This set of six outside micrometers, ranging from 6 to 12 inches, is perfect for metalworking inspection and measurement. With a mechanical reading system and a Chuan brand, you can be sure of its accuracy. The micrometers come with standards, adjustment wrenches, extension couplers, and nice wooden case for safekeeping. Made in China, this tool is essential for CNC, metalworking, and manufacturing industries. It is easy to use and measures precisely. Get your hands on this Chuan brand outside micrometer set today and take your measurements to the next level. These mics have no signs of wear and work very smoothly. Selling for original owner who purchased set many years ago. Very minimal use. No rust or corrosion on frames or anvils. Selling for fraction of high dollar brand name cost.