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Why do I feel like I'm chewing the fuck out of the hole when using a M8 x 1.25 tap?
Probably because the damaged threads in the end have caused the tap to start cutting threads off set.
Can you not start tapping from the other side of the hole?
drøn-
Cheers. That makes sense.
I'm now nervous about fucking those up too. Is there anything I can do to prevent further damage?
The thing that is a pain is that the bolt does not go all the way through to the bottom, so the first 1-2mm of threads are important as they account for maybe ¼ of the contact.
hugo7
I have a hole that this bolt goes into.
The first part of the threads of the hole are damaged.
I want to chase the threads using my new tap/die set.
The gauge thingy says 1.25.
I've chased the threads of the old bolt with an M8 x 1.25 die and it seems to screw into the bottom of the hole OK.
Why do I feel like I'm chewing the fuck out of the hole when using a M8 x 1.25 tap?