Durable Construction: The SAE caliper is made of finely polished stainless steel and uses double shock-proof technology for increased durability and high precision. The padded case allows the analog caliper to be safely stored when not in use, making it more convenient and easy to carry
When the Dial Hand is Not at Zero: 1. Make sure there is no dust on the faces for external measurement. 2. Close the jaws, loosen the dial locking screw and rotate the dial bezel