Aldan American spanner wrenches are made in Carson, California USA. Our ALD-1 steel spanner wrench can be used with any hook-and-groove style coilover shock. This spanner wrench can open from a closed position up to 4.75"+ of useable jaw space. 6.25" solid steel frame with a thick rubber handle for maximum grip. use this wrench when adjusting your coilover street or racing shocks. Can be used with aluminum or steel lock nuts.