The Rotorazer™ and Rotorazer Platinum come with three easy-to-replace razor-sharp blades. You get one blade for cutting wood, a second blade for metal, a third blade for ceramic tile, travertine and marble.
Before replacing the blades, first make sure that it's not connected to any plug or outlet. Then, insert the hex socket wrench on the right side while inserting the hex wrench on the left to untighten the hex head bolt. Insert the blade of your preference, and then use the hex wrench again to tighten the hex head bolt, always making sure that the blade is inserted correctly, and the bolt is strongly tightened.