The dewalt dwe397 alligator saw is ideal for cutting class 12 clay blocks poroton with its 430mm tct blade two saw blades run in opposite directions so that the material will not move while cutting the alligator saw has a durable high power motor suitable for the toughest applications it has an aluminium gearbox for lower weight and extra durability the ergonomic design with an overmoulded rear handle and bale handle provides superior handling and less fatigue the saw uses a long life low vibra