I don't buy tools to just collect them, I buy what I need for a task. In this case I am removing excess balsa from inside model V2 rocket nose and tail cone parts to improve stability and reduce weight. This is a slow, meticulous process, and the size and weight of these really helped.I thought that I would just need the curved gouge, but found myself switching tools often, due to the grain of the wood. I'm glad to have all of them.