The dewalt dcs397 flex volt xr alligator saw is fitted with a durable high power brushless motor for the toughest applications fitted with two saw blades that run in opposite directions so the material will not move while cutting aluminium gearcase housing for lower weight and excellent durability that is also dust sealed along with the bearings for increased durability ideal for cutting class 12 clay block poroton dcs397t2 2 x 1854 volt 6020ah li ion batteries dcs397n bare unit no battery or ch