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RH Undercut Tool

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Project by Jim Jakosh posted 08-28-2011 10:58 PM 1563 views 0 times favorited 10 comments Add to Favorites Watch

This is a tool I have had in the planning for a long time. I wanted a tool to undercut things like the head of a mushroom on a wine stopper or refrigerator magnet. I had made a LH undercut tool and use it a lot to cut round bottom grooves in the bottoms of bowls where I used to use a skew. It also has the angle on it so I can get real close to the center when grooving a bowl bottom.
This one is made from a 1/2” tool steel lathe tool bit which is ground to a .125 blade and rounded . It is welded to a piece of 5/8” square hot rolled steel which I cut it out to 1/2” to fit the tool in and welded it all around and then rounded the other end with a 4 1/2” angle grinder to fit the 5/8” hole in the handle. The handle is made from a sandwich of mahogany and maple with grooves burned in with a 1/16 aircraft cable. the brass ferrule around the top of the handle is probably the last piece I can get out of an old brass hammer I had. I made that hammer with a 1” head and 3/4” handle back in 1965 when I was a tool and die apprentice. I found it in mom’s house when we were cleaning it out and thought it could be of further use someday. That day has come and gone. The last shot is what is left of the 1” head with a threaded hole in the center…..........Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!





10 comments so far

View peteg's profile

peteg

3010 posts in 1577 days


#1 posted 08-29-2011 02:08 AM

Great idea Jim, might have to knock one up for myself, I have plenty of spare turning chisels to rehash :))

-- Pete G: If you always do what you always did you'll always get what you always got

View Grumpy's profile

Grumpy

19715 posts in 2605 days


#2 posted 08-29-2011 02:37 AM

Interesting tool Jim. Maybe you could show us some of the projects you used the tool on. Just a thought.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View ShopTinker's profile

ShopTinker

881 posts in 1522 days


#3 posted 08-29-2011 03:35 AM

Having the metal working skills to be able to make your own woodworking tools is pretty cool! Nice job on a very cool tool. You might be able to make something from what’s left of that hammer head, a washer or two maybe? :)

-- Dan - Valparaiso, Indiana, "A smart man changes his mind, a fool never does."

View Jim Jakosh's profile

Jim Jakosh

12383 posts in 1859 days


#4 posted 08-29-2011 04:56 AM

I have a project in mind for this tool. I should get it out this summer yet…........Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View Bob Collins's profile

Bob Collins

1590 posts in 2438 days


#5 posted 08-29-2011 07:35 AM

Handy looking tool JIm, also have a few spare turning chisels that could be reshaped.

-- Bob C, Australia. I love sharing as long as it is not my tools

View Michael1's profile

Michael1

403 posts in 1414 days


#6 posted 08-29-2011 10:16 AM

That is awesome!! My Dad was a tool and Die maker by trade and I wish I had learned more about metal working as I cant tell the difference between different metals. My brother is a machinist and he tells me the same thing when it comes to wood. So we team together and help each other with projects. I am going to enlist his assistance in making one of these. thanks for the post and inspiration.

-- Michael Mills, North Carolina, http://www.scicaskets.com

View Roger's profile

Roger

15371 posts in 1558 days


#7 posted 08-29-2011 01:50 PM

gr8 way to recycle Jim

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View jjw5858's profile

jjw5858

1121 posts in 1356 days


#8 posted 08-31-2011 02:35 AM

Very cool idea here, great job!

-- "Always continue to learn, laugh and share!" JJW

View mafe's profile (online now)

mafe

9690 posts in 1843 days


#9 posted 09-01-2011 01:02 AM

Nice Jim, nothing like homemade tools.
And what a elegant handle.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View exelectrician's profile

exelectrician

1764 posts in 1181 days


#10 posted 11-05-2011 03:59 AM

Jim you are a man after mine own heart. I was brought up with the mantra “waste not want not”. How many kids are taught that now?

-- Love thy neighbour as thyself

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