i have a 7" strikemaster lazer, allong with my jiffy legend xt, but anyway i can beat just about any power auger with that thing. i keep the blades sharp with diamond steel and that thin will rip. i can take 3/4" of ice away per rotation. i used to only use this, but drilling 40 holes with a foot of ice gets very tiring, now i switch to my jiffy when ice is more than 6"