I am trying to thread a 1-1/4 pipe and have new inserts in a ridgid manual threader. I have only been able to satisfactorily thread the pipe to the end of the inserts. This would seem find expect it only allows me to thread the fitting on about 1.5 turns. As soon as I try to take some additional turns past the end of the inserts, the pipe bends inward due to the extra load. Any ideas what I am doing wrong? Based on the length of thread on a pipe I purchased from Lowes, I need to thread the pipe about an additoinal 1/4 in.
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