Review on Cherne 270168 Clean Out Mechanical Gripper by Chris Peck

Would give this 5 stars because it seals my 60 year old 2 inch cast iron cleaning perfectly. However, when I started tightening it, the stainless steel nut immediately caught on the threads and became unusable. I found a replacement carriage bolt and nut at a hardware store. Worked great after the repair, but be careful.