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Piercing (Read 154 times)
 
Jenny Trice
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St. Paul, MN, Minnesota, USA
St. Paul, MN
Minnesota
USA

Gender: female
Piercing
Sep 24th, 2018 at 7:13pm
 
How fast (rpm) does a tool have to be to do piercing.  I came across an air driven miniature grinding tool that I think might work but I know very little about this type of embellishment.  What kind of 'bits'?
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Ron Carrabotta
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Dawsonville, ga, Georgia, USA
Dawsonville, ga
Georgia
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Gender: male

Jet 1014 VS
Jet 1642 -2EVS
Powermatic 3520B
Re: Piercing
Reply #1 - Sep 25th, 2018 at 8:35am
 
Jenny,

Not an easy answer without a few facts:

Simply put, the faster the better, I use an NSK, 300,000 RPM. I tried piercing with a Foredom +- 15,000 RPM but was not satisfied with the results.

On the NSK, I use the 699L bits.

If you know who the manufacturer of the tool is, you can check out the specs as far as RPM & bit size.

Treeline USA is a good source for bits etc. Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register

I'm sure others will be chiming in as well.

Good luck, piercing is a fun way to enhance your projects. Thumbs Up
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« Last Edit: Sep 25th, 2018 at 8:36am by Ron Carrabotta »  

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Simon Barnard
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Nailsworth, Gloucestershire, United Kingdom
Nailsworth, Gloucestershire
United Kingdom

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Vicmarc 300
Re: Piercing
Reply #2 - Oct 8th, 2018 at 5:33am
 
Also good to know what you want to pierce and the wall thickness.

I have both the NSK and a micromotor tool. The NSK excels when the wall thickness is 1 to 2 mm but needs several passes when you get to >3mm. The micro motors carving tools are great and go to approx 45,000rpm so 3x dremel etc that really makes a difference.

Like Ron I tried with dremel type speeds but like trying to rough a square spindle blank with lathe at 100rpm by comparison.
Simon
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