The park tool micro fold up hex key set features 3 4 and 5mm hexes a t25 torx compatible bit combo screwdriver and a key ring holder park tool micro fold up hex key set features the aws 13 is a micro sized 57 mm 225 in fold up tool that features 3 4 amp 5 mm hex wrenches t25 torxreg compatible wrench combo screwdriver and key ring super tough composite handle 225 in 57mm long