A-SZCXTOP Multifunctional Metal Skate Tool Skateboard T-Tool All in One Tool Its small enough to fit inside your pocket, you can do some repaies /changing out hardware. This Skateboard Tool T Shape is an necessity for your skateboard It works with pennyboard. Works for all standard boards and mounting hardware including Allen head mounting bolts. It has a philips and allen keyon the removable bit. The main tool has 3 sizes of nut drivers to fit standard trucks and mounting hardware including wheel nuts. 3/8 in socket,1/2 in socket,9/16 in socket.