"With the SPIN-IT, Plasti-Bond can be tightened much faster than with conventional tools. Because SPIN-IT never touches the coating, damage to the conduit is eliminated. SPIN-IT is available in popular sizes for 3/4"" through 2"" drive conduit. Use 1/2"" drive impact wrench or a standard ratchet wrench for 3/4"" and 1"" conduit, use 3/4"" drive for sizes 1-1/4"" through 2"".