Bolt hobbing tool

by alejoal07, published

Bolt hobbing tool by alejoal07 Sep 16, 2012
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Bolt hobbing tool by alejoal07 is licensed under the Creative Commons - Attribution license.

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Tool for hobbing Bolts in a Lathe.

Felt like making an easier to print version of what's available

Haven't had time to print it yet but it should work, let me know if it does! ;)


  • Put two 608 bearings in the holes
  • Hob in Lathe! :)

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I beefed up the square section tang to stop flexing in my lathe.
This works great! no more spending hard eared cash on hobbed bolts!

I've designed several for one off extruders, I'd recommend putting the bearings in internal slots, that way when you pry the hobbed bolt out, you don't remove the bearing from the tool and have to sort that mess out. That said, if you are doing just 1 or 2, not much of a problem.