Ck conduit bush wrench ck tools t4755 the innovative head design of the ck t4755 conduit bush wrench allows for all sizes of conduit bushes to be tightened or loosened even with cabling in place the tool blade is made from zinc phosphate coated tough alloy steel for high strength and durability the handle has a soft grip tri lobe shape for exceptional comfort and control ck tools t4755 conduit bush wrench