A simple ingenius tool with an integrated co2 dispenser the rap co2 line of multi tools feature a simple yet ingenious design that integrates a co2 dispenser the co2 head quickly slides on or off the 5 mm bit allowing for easy access and an internal sleeve unthreads from the chuck revealing the engagement port for a threaded co2 cartridge the head threads onto either a presta or shrader valve and is made up of a lightweight and durable aluminum construction available in a 15 or 21 tool