Dewalt DWE397 QS - 1700 W, 430 mm Alligator Saw is mostly used for cutting hollow clay blocks, aerated concrete, timber and insulation materials. Dewalt DWE397 QS comes with two durable blades with a thicker sword. It helps in reducing the deflection and maintain accuracy while cutting the workpiece. The integrated blade clamp allows the entire sword to pass through the substrate with ease. DeWalt Alligator Saw is made up of sturdy aluminium gear case housing that makes the device lightweight and improves the durability.