collect a couple of dozen diamond bonded/sintered burs of various
find a piece of jade, rhodonite, chrysoprase, dried chewing gum,
draw out a 3-d design on material. apply burs as needed.
voila! you will have the answer not only to why so many, but will
also learn that you don’t have enough of them. enjoy - ive
ps: or just substitute the word ‘tools’ for ‘burs’.