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 ...
That pipe — a 4-inch-wide (10 centimeters) cooling water line in a server room at Stanford University in California that's home to the SDO Joint Science Operations Center (JSOC) — burst on Nov.