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  • As some of you know, I have wanted to stop managing H-M for some time. It's a tremendous strain on my personal life. I want to set up my own shop. In September, September 15, to be exact, it will be 8 years that Hobby-Machinist has been in existence.

    I have been training VTCNC to run things here. Dabbler is going to learn too. I feel that they are ready to start taking over the operation. I will be here to help in case they need, but I don't think they will. Tony Wells is and will be here also to consult with. I will be doing backups, upgrades, and installing addons. Other than that, I will not be around. I am leaving this place in good operating condition, and financial condition.

Twin 4J chuck keys

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H-M Supporter - Gold Member
H-M Supporter - Gold Member ($25)
Jan 15, 2016
I made a pair of identical chuck keys specifically for setting up my 4-jaw chuck. Not my idea, I saw it somewhere. But it works quite well because you can adjust the opposing jaws simultaneously in unison while watching the dial, converging on the target with both jaws tight. Its easier to do than explain but saved me set dial-in time because normally I am slow as a tortoise.

I found a piece of 0.750" diameter mystery metal which looked nice & shiny - always a dangerous sign! It wasn't magnetic so I knew it was some kind of stainless. Not the most fun to machine but oh well, used up the scrap & it wont rust -LOL. Initially I was going to make a knob but didn't like how it looked so went the tommy bar route. Notice my goof up, the tommy bar is not aligned to the square facets. Oops. Then I looked at my other commercial chuck keys - neither are they! Haha. So its a design enhancement, not a screw up.


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Jan 27, 2018
Very nice. I have wanted to do the same, but still have not found the proper material.
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