Hello mr. bird and all other impact wrench type people.I'm getting ready to buy a new impact wrench and I am thinking on getting the IR-2131A,which northern tool has for 189.99.One of the main reasons I am getting it is to remove my brushog blades,its supposed to have 600 ft.lbs. in reverse and 450 in forward. #1,will this be enough to remove the blades?What are they torqued at?I will call king kutter,I heard on here someplace it was 500 or 600 lbs,sound right?#2,What kind of torque settings does it have on it,from what ft.lbs to the max and how does it adjust,and wonder what the lowest setting is?It would be nice to use it for something else,if you know what I mean. My compessor puts out 5.7 scrm at 90 psi,so that won't be any problem,the 2131a it says needs4.8. Also does any body know if these bolts are righty tighty,I could call kinkkutter to find that out also,was just wondering if anybody out there knew from experience. thankyou, RICHARD GAUTHIER