I use the 6 marking protractor a lot as, I make a lot of projects for people that are special to them and I do most of my own drawings. I make the projecs for people that the big shops do not want to bother with, love the chalange !!! good with wood not spelling, also have the bend ruler, 6" t ruler, and the 12" t ruler all have been a lot of help and  work great , also made well all from amazon.