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Internal threading

Away from Headstock as per Joe Piezynski.

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OuBallie08/02/2022 07:52:32
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1166 forum posts
662 photos

Hello all,

Back into Workshop at last.

Ref: Joe Piezynski youtube video showing internal threading away from Headstock.

Anyone know where to buy a similar tool please, as I need to thread a number of parts from an internal shoulder.

I could of course use the VFD Jog feature, but have never done internal threading like this before.

Any advise appreciated.

Regards,

Geoff

Martin Connelly08/02/2022 08:12:21
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2137 forum posts
222 photos

These tools are available as insert holders and inserts but tend to be industrial prices that may exceed your budget.

A simpler home shop tool can be made similar to a boring bar with an inserted piece of HSS or carbide ground to suit. If the the cutter part is put in at an angle it can go close in to a shoulder. I think I have seen a YouTube video of someone making one.

Search for SNL0013M16 online

Martin C

Edited to add the designation

Edited By Martin Connelly on 08/02/2022 08:28:33

Paul Lousick08/02/2022 09:15:30
2043 forum posts
722 photos

An SNL0012K11 Internal Threading Turning Tool Boring Bar Holder LH without carbide inserts is advertised on ebay UK (AKA that web site that no one can spell properly) for only £9.

Paul

 

Edited By Paul Lousick on 08/02/2022 09:16:20

OuBallie09/02/2022 12:51:54
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1166 forum posts
662 photos

Thanks.

JohnF10/02/2022 10:37:19
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1152 forum posts
190 photos

Geoff, have a look at this photo of hand ground HSS tools, first & third from the LHS **LINK**.

Made to work with the lathe running in reverse and the carriage traveling Left to Right — away from the chuck thus cuts a RH thread from a shoulder or blind hole with an undercut.

John

Oldiron10/02/2022 13:25:44
976 forum posts
40 photos
Posted by Paul Lousick on 08/02/2022 09:15:30:

ebay UK (AKA that web site that no one can spell properly).

Paul

Yes that is so annoying Paul. It is in your face every day and most people still cannot remember what it is called or how it is spelled. smileydevil

regards

Hopper10/02/2022 14:03:45
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6404 forum posts
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Posted by Oldiron on 10/02/2022 13:25:44:
Posted by Paul Lousick on 08/02/2022 09:15:30:

ebay UK (AKA that web site that no one can spell properly).

Paul

Yes that is so annoying Paul. It is in your face every day and most people still cannot remember what it is called or how it is spelled. smileydevil

regards

Ebay themselves spell it eBay in some places, and ebay in others. No wonder the rest of us are confused.

OuBallie12/02/2022 16:59:47
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1166 forum posts
662 photos

John,
Perfect thanks.

Geoff

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