LEATHERMAN Jam Skate Tool Black Brand: Leatherman Leatherman Jam Skate Tool Black Grip Tape File: This integrated file is perfect for scoring grip tape, allowing the user to cut a clean edge on their skateboard deck. 9/16in - 1/2in - 3/8in Open End Wrench: A wrench used over the head of an hexagonal nut or bolt. The application of torque is used to tighten or loosen an object. Bottle Opener: A tool that allows the user to pop the top on a favorite beverage.