Rockwell 4.2A F80 DuoTech Sonicrafter Oscillating Tool DuoTech Oscillating Technology allows the user to select optimum oscillation angle for best performance given material and applicationHyperlock Tool-Free blade holding system offers 1 ton of holding force for quick and reliable blade changesHyperlock Tool-Free blade holding system offers 1 ton of holding force for quick and reliable blade changesPowerful 4.2 amp motor with constant speed control won't stall under heavy load.Includes 10 accessories and hard storage caseVariable Oscillation speed, 10,000 - 19,000 opm. 3 Year WarrantyDual oscillation angles, 5 degrees or 3.4 degrees