Treen mandrel

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Forum topic by Sawdust2 posted 11-28-2010 04:36 PM 2675 views 0 times favorited 5 replies Add to Favorites Watch
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1466 posts in 4115 days

11-28-2010 04:36 PM

Topic tags/keywords: question lathe

Has anyone here used Beall’s Treen Mandrel?

Likes, dislikes?

-- No piece is cut too short. It was meant for a smaller project.

5 replies so far

View Mark Shymanski's profile

Mark Shymanski

5621 posts in 3740 days

#1 posted 01-01-2011 04:51 PM

Displaying my ignorance here but what is a Treen mandrel used for?

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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1466 posts in 4115 days

#2 posted 01-01-2011 05:08 PM

Best way to describe it is to tell you to go to and let you look.
Plus it is a plug for JR who makes good stuff.
I got one and am enjoying playing with it.


-- No piece is cut too short. It was meant for a smaller project.

View richgreer's profile


4541 posts in 3102 days

#3 posted 01-01-2011 05:28 PM

I have a Treen mandrel and I would be glad to comment.

If you are using the basic mandrel, which requires a 1.25” hole, it works very well. I find that it does not work as well with the optional rings to expand it to 1.5” or 2”.

You will also read about a Treen converter that allows you to use a dowel instead of the fittings to assemble the tops. IMO, the converter does not work well. It is very hard to get it tight enough to hold the wood securely.

I don’t use the fittings or the converter. I have found my own way to make the tops.

I’d recommend buying the basic unit and giving it a try. You can make some very interesting small boxes.

One more recommendation – - Don’t bother with the cork. It’s a pain to work with. In theory, it allows for expansion and contraction of the wood so you get a good fit year round. I don’t use cork any more and I still get a good fit year round. I like to hear the pop whenever I remove the lid. It confirms that I have a nice tight fit without it being too tight.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

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1466 posts in 4115 days

#4 posted 01-01-2011 06:39 PM

I’ve made a few “boxes” but no tops yet.
I’ve looked, just quickly, locally for some of the 1/2” inserts he supplied. No joy.
I’d thought I would just thread the hole for the top and screw it on to his top maker then just jam a 1/2” dowel in the hole.
Or put a 1/2” dowel in the top, put that in the collet chuck and turn it.

It gave me an idea for another cute little item. I like the 1.07” LED lights for a buck. I bought a 27.5mm drill bit, turned a piece of maple to the right size. Drilled the hole all the way thru a nice piece of padauk or zebra wood, put it on the home made mandrel, turned it right small and epoxied the light into it. Nice improvement.

I like to use CA when finishing pens so I used that on the round boxes. LOL. They have a higher centrifugal speed than pens. CA flew all over my apron!

I hear you. I’ll probably try the cork at least once, anyway.


-- No piece is cut too short. It was meant for a smaller project.

View panamint's profile


46 posts in 2470 days

#5 posted 09-19-2011 03:46 AM

Hey Rich I know this is a old post but was wondering if you would mind sharing the way you found to not use the inserts or adapter for the Treen tops. I can’t get the adapter to grab the lid or stopper very good.
Thanks Scott


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