18 MM Deep Socket 3/8" Dr - 12 Point - Made in Japan. Chrome Vanadium Steel.  Made in Japan.,,Hardwick & Sons is pleased to offer quality tools from Japan for the many people who desire special & well-crafted tools. The wide variety of Japanese products that we offer come from the many craftsmen & toolmakers in Japan who have a special dedication to their skillful craft & art of toolmaking. 18 MM Deep Socket 3/8" Dr - 12 Point - Made in Japan