Designed as the common skate tool, just less expensive this time. Socket sizes 9/16" 1/2" 3/8" These sizes should fit nearly every skateboard truck, axle, and hardware as these are the standard sizes. I also set the depth of each socket to 2" so your hardware never hits the back of the socket when you are trying to tighten them all the way. Skate and Create!This tool is on piece and can be printed with supports because they wont interfere with the sockets. Lay tool flat on platform. Use Raft and Supports 50% infill 4 shelves layer height 0.20