I have a chair that has a knob with a screw in type extension (about 1/4 inch in diameter). The threads on the screw in portion of the knob became stripped, and I obtained a new knob. However, the opening where the screw in extension belongs has become damaged and it needs to be rethreaded. I am pretty sure there are tools that will rethread the opening, and I am wondering if they are adjustable or if I have to buy a specific tool for the specific sized opening that I am dealing with.
Also, if it is simpler to just take the chair to a hardware store and get this small opening rethreaded I would be happy to do that. I just don't know where to start, and am looking for good tips.
Thanks,
JD