Factory Serviced DUALSAW"s patented counter rotating blade technology makes it the only saw with 2 blades that simultaneously rotate in opposite directions. This professional grade saw"s unique technology and dual blade design allow you to cut through virtually any material without changing blades. DUALSAW"s precision engineering lets you plunge cut through virtually every material without the usual pilot hole drilling. The included tungsten-carbide blades wield enough power to cut through wood, plastic, metal. Less Kickback for Better Accuracy Reduces Sparks and Overheating High-Performance With Minimal Vibrations Precision Cutting - Less Splintering and Breaking The DUAL SAW is powered by a patented high speed system with a 900 watt motor that rotates the dual blades in opposite directions at 5,500 RPMs. In comparison, the DUAL SAW offers 1,000+ more RPMs for the value. DUAL SAW"s inverted rotation moves its two blades equally both forward and backward. Eliminate the usual kickback, vibrations and sparks that other saws cause. DUAL SAW"s professional lubricating system allows you to cut through soft metals like aluminum, copper and stainless steel without overheating or warping them. DUAL SAW"s laser-honed, tungsten carbide-tipped blades cut hard and soft metals, hard wood, PVC, Formica, iron, plastics, aluminum, wood, copper, stainless steel and more. Our Diamond Blades add the versatility of a wet saw to cut stone, ceramics, tile and more. Used to cut virtually anything: Hard and soft woods, hard metals, soft metals, plastics, Formica, PVC, iron, aluminum, corrugated steel, brass, copper, industrial grade rebar and MUCH MORE. Lubrication System: included and assembled on the machine to effortlessly feed the lubrication sticks for cutting soft metals, copper, aluminum, brass Diamond Blades (also available) easily changed with Key Tool provided, for cutting masonry, cement, ceramics, stone, tile, granite, marble and much more.