The ADI 17mm hex wheel wrench, #10021, is made of 6061-T6 aluminum and is hard anodized with the ADI logo and size laser engraved. It fits 1/8th electric/nitro vehicles or any 17mm hex nut. It is light weight with a cored handle and center through hole to help with the installation and removal of the screw that holds the wheel hex to the axle.