MW16MEU is a 16-piece mechanical drive tool set manufactured by Apex Tool Group. It comes with a variety of drive heads in 3/8 inch, 1/2 inch, and 3/4 inch sizes, as well as five metric sizes. The set also includes a universal joint, extension bar, and ratchet handle, all in a convenient, heavy-duty blow-molded case, making it a great all-in-one solution any DIYer or professional mechanic should have in their toolkit.