tap and die set

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Forum topic by dakremer posted 01-15-2013 05:57 AM 4815 views 0 times favorited 12 replies Add to Favorites Watch
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01-15-2013 05:57 AM

Anyone ever use a tap and die (the ones made for metal) on wood? I’ve seen the Wood Whisperer use a tap before in wood, which allowed a bolt to be securely held to the wood. You can see him do this here

What about using the die to cut the threads on a dowel??

-- Hey you dang woodchucks, quit chucking my wood!!!!

12 replies so far

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2557 posts in 2130 days

#1 posted 01-15-2013 06:00 AM

-- Hey you dang woodchucks, quit chucking my wood!!!!

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#2 posted 01-15-2013 07:48 AM

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jim C

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#3 posted 01-15-2013 11:11 AM

A normal tap and die set works like a charm. Just don’t try it under 1/4-20 size as the threads are to fine.
You can even drill and tap MDF as long as you drip crazy glue into the tapped hole afterwards. The stuff “hardens the MDF threads.
Stay away from the super cheap sets sold in the big box stores. They just plain don’t work!
I got mine from Amazon. Read the reviews and pick out a set.

-- When I was a boy, I was told "anyone can be President", now I'm beginning to believe it!

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#4 posted 01-15-2013 12:54 PM

I do it on accessories I make for my lathe. I tap the wood, then flood it with thin CA glue. When the is glue dry I tap it again to clean out glue residue. End grain doesn’t take threads very well.

-- on Wednesday's I go shopping, and have buttered scones for tea...

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#5 posted 01-15-2013 01:12 PM

Another believer in CA glue here.
When you gotta, you gotta.


-- -- I'm no rocket surgeon

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#6 posted 01-15-2013 01:24 PM

I wonder if a pipe tap & die might be a better choice than SAE/USS machine screw threads? The threads are coarser. I’m gonna try this!

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

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#7 posted 01-15-2013 01:40 PM

I have had limited success with machine tap and die sets the tighter the grain the better they work. I will try the CA next time . Pipe threads are tapered while they might cut threads OK because of their coarseness they won’t accept anything except another pipe thread. They also are cut as a crush thread to seal.

I have had good luck on wooden geared clocks that need set screws just using the set screw working it in and out until the threads are cut to the depth I need. These are usually 1/8” or smaller. I think the Ca would really work well on them. I am always worried about stripping the threads out.

-- Bruce, Boise, ID

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#8 posted 01-15-2013 05:52 PM

Since I make train models from wood, I tap holes all the time. One trick I learned to get a tight fitting set screw for a saw insert plate is to use one size smaller tap drill. When you tap the hole, the threads will be slightly oversize and will lock a set screw so vibration won’t loosen it. I use this on #8-32 screws in Baltic Birch plywood, 12/” thick. Works like a charm. As for cutting external threads, a coarse thread on hardwood will work, but I don’t see any application where a V thread on wood would be needed. The threads would be too fragile. There are some taps and dies specially made for wood. They resemble an Acme thread and are much coarser. They are used on some Colonial style American furniture.

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16446 posts in 2714 days

#9 posted 01-15-2013 09:32 PM

A pipe thread tap should work just fine. The die would too if you run it all the way on to level out the taper.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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Don W

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#10 posted 01-15-2013 09:34 PM

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#11 posted 01-16-2013 01:21 PM

Some good tips here. Ya learn somethin every day on here.

-- Roger from KY. Work/Play/Travel Safe.

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#12 posted 01-16-2013 01:46 PM

You might want to try spiral point taps. They may be gentler on the wood fibers.

helluvawreck aka Charles

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

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