Park mt 1 rescue wrench multi tool the mt 1 is a high quality multi tool that is uncomplicated easy to use and effective each of the nine tools is carefully positioned so the mt 1 can be effectively used on those tough to get to nuts bolts and screws features 3 4 5 6 and 8 mm hex wrenches 8 9 and 10 mm sockets wrenches as well as a flat head screwdriver made of investment cast steel and electro less nickel plated for durability made in the usa and covered by parks legendary l