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Reply by HorizontalMike

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Posted on Applications of 60RPM to 250RPM on a wood lathe?

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HorizontalMike

7898 posts in 3792 days


#1 posted 07-12-2017 05:58 PM



I use slower speeds when using my chuck and bits, for drilling. Small bits need faster speeds, but larger ones benefit from very slow speeds and slow feeding when turning spindles and knobs. My 2-cents.
- HorizontalMike

Thanks Mike,
I once saw a video on youtube about drilling with an auger bit. But the guy didn t mentioned anything about speeds. What speed would you recomend for drilling a 1” inch hole with an aprox. of 15” depth?
Thank you for your time Mike!
- JorgeJO53M

I know drill bit speed charts show 500rpm for 1in bits, but I would still go as low as 250 on my Delta 46-460 (its slowest speed). Plus, 15in is a very long hole to tap, and I would recommend using at least one, if not two, spindle steady rests when attempting this. That is if you even have such long bits in the first place. And always remember to step up in bit size very slowly, in order to minimize bit drift (going off center). Not sure you could afford to have so many bits that long… so my answer is that you will need to find another way to accomplish what you want.

Probably need to cut square stock in half, route out your half-round on each piece, glue back together, and THEN turn your spindle. And even then, I would probably use one steady rest to make it easier.
Just my 2-cents worth…

-- HorizontalMike -- "Woodpeckers understand..."


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