Making Big Bolts - Threading 3" Bars for Rock Crusher Bolts - Manual Machine Shop

Big jobs are what I like doing best. The bigger the part, the more I enjoy it. So, this job was something I really wanted to take on. This is from a new customer, and a while back I did some long threading of 2" bar stock for them as the test. Now, the big job of 3" bar stock came in for threading.

The first part was started by another shop and they couldn't quite do the job. Since they had started the thread, I had to locate and start cutting where they left off. This is something I have done for many years with great success. I hope you can learn from this process, I know it is difficult to see. That is the sucky part of doing these videos by myself, I can never get the camera where I want it.

The other end went well, and gave me a reference point to thread to. After that, the rest of them went quite well. Big threading takes a lot of horsepower, skill, and patience. I make it look easy, but it really isn't as easy as you may think. Years of experience and the proper equipment definitely help.

Topper Machine LLC is an entirely manual machine shop located in Spooner, WI. Our videos will highlight some of our shop work.

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