Lezyne blox 23 multi toolthe blox 23 is a shop quality tool in a trail size package extra long bits and high tool bit count makes this an extremely versatile and portable tool cnc machined aluminum side plated reduce weight while increasing tool rigidity chrome vanadium forged and drawn bits are nickel plated for durability wrapped bit design allows for a compact tool profile precision cast steel chain breaker works with 910 speed chains and has 3 integrated spoke wrenches featuresweight