With the mk 234 the clue39s in the name the kit contains a whole 12 extra tools over 201339s mk 222 and it39s the same price you will not get a better deal for setting up your workshop whatever you call it this is it the tool set to end all tool sets designed for the professional mechanic the mk 234 is a complete set of professional level tools cutters and reamers gauges and accessories the perfect way to start a repair business open or expand a bike shop or create the ultimat