RIDGID 42878 Model 238-P Powered Soil Pipe Cutter, 8-inch Chain Pipe Cutter Dual-powered tool operates using a 1/2-inch square drive impact driver or ratchet Cuts up to 8-inch soil pipe when used with an impact driver (minimum 200-ft-lbs) or 4-inch pipe manually with the included ratchet Compact, lightweight design allows tool to fit into tight places in overhead and below grade applications and easily mount in difficult places Easy to set up, the articulating outward facing chain hooks lay on the pipe to simplify latching Features two directional operation that allows scoring of the pipe for a clean cut