The DF-900DX includes everything found in the DF-900A but also includes a bridge puller, 3rd drawer, and dust cover Includes: hammers, nylon & polished steel dollies, infrared temp gauge, digital heat gun, instructional CD, storage cart, and 110 volt AluSpotÆ welder Includes a stainless steel brush for last minute cleaning Inclusion of an infrared thermometer & digital temperature set heat gun to heat the panel A self-locking squeeze puller makes it easier to pull & heat at the same time This squeeze puller can pull on one or several pins For heavier pulls, use a leverage puller, and for lighter finesse pulls, use a single pin hand puller