GATOR roof cutter has a single blade with cutting depths adjustable to 3-3/4 inch by hand crank positioned between handlebars. Has a 13 H.P. Honda engine. The cutting shaft is powered by a 3-in-1 long life V belt, right-hand cut, easy belt, and blade change covers, panel mount throttle cable, and a center mount hoisting ring. We make our motor base from 3/16 steel and use 10 gage for our fully welded blade cover. This roof cutter is built by mechanics that have been working on roofing equipment for 25 years.