TL; The DR isn't a bad tool, but I assume the locking head isn't locking tight. So I became a mechanic and eventually made it a career. Naturally…. Tool. Between personal situations (read: wife and kids) and just personal preferences/opinions, I know that due to the significant price difference, I'll buy very few Mac/Marco/Snap-on type things, if at all. between that and something like GW is basically, but not entirely, the name on the instrument. I don't have exact data, but I would say that…