yes this knife is good for budding and all kinds of grafting. imo cheap and grafting knifes are not good combinations. i have used the cheap american style grafting knifes and highly reccomend against them. specially for quality.
second, for the price of that grafting knife. you now have the power to create thousands of trees for very very cheap. some of which trees
can be sold for a good price and a high
profit on your terms, making up for the knife easily in one season. and then you have the knife to graft for hundreds of years given good care of the knife.
there are models that are similar and cheaper but the quality is not there, you NEED a VERY SHARP knife to do this properly with a good success rate. imo its a matter of 10-50% take and 95-100% take in your trees.
my opinion anyways