almost buy the variable speed but less powerful cousin . glad I do not . this unit work great . it be heavy so you will not want to do much vertical or overhead work . one reviewr comment that it wear out he worker and I can see why . a hour be the must I can go without a break . but you can get a lot of sand do in a hr with this tool . much quieter than my old Sears unit . dust collector work surprisingly well -lrb- but I wish they offer a vac attachment becasue at the rate this unit remove material you will have to empty bag every 10 min or sooner . probably 3 time faster than my 3 '' Sears and more stable with 4 '' footprint . my past tool have be Bosch , Milwaukee , and Dewalt . but I buy Makita 's top of line 18v saw and drill and be very impressed . buy this base on that experience and great review . very satisfy .