Any one familiar with using a thread chaser?

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Forum topic by Michael1 posted 1034 days ago 1955 views 0 times favorited 9 replies Add to Favorites Watch
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403 posts in 1256 days

1034 days ago

Topic tags/keywords: cutting threads in wood thread chaser lathe teqniqes

I have recently been researching ways to cut threads in wood, say for a lidded bowl turning with a screwed on lid. I have came across some neat techniques like using PVC plumbing parts and gluing the female threads into the bowl and the male threads to the lid.

However, at the Woodcraft store I came across a hand tool grouped with the lathe chisels called a “Thread Chaser” It looked similar to a small skew chisel but the business end of the tool was at a 90 degree angle from the handle. My question is how do you use it? Is it really used to cut threads and how do you go about it?

-- Michael Mills, North Carolina,

9 replies so far

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6962 posts in 2029 days

#1 posted 1034 days ago

I cut threads now and then. I use the Beall thread stuff. Both to thread dowel and to make the nut part. Works great.

-- Gary, DeKalb Texas only 4 miles from the mill

View crank49's profile


3336 posts in 1567 days

#2 posted 1034 days ago

The only thread chaser I have used was like a sort of file with teeth cut to fit the size thread I wanted to chase.

The act of chasing threads is, to my understanding of the term, to repair existing threads.

Making new threads would be called cutting threads or simply tapping a hole in the case of internal threads.

I have heard the term used to describe running a tap through a threaded hole to clean up the threads, as in “chase the threads with a tap”.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

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Bob Kollman

1796 posts in 1787 days

#3 posted 1034 days ago

A thread chaser is used for cleaning up threads. Not made for cutting new threads.
If you have a metal turning lathe you can cut large diameter threads in most any
material. For anything over an inch you would probably need to look into pre made
thread inserts. If you have a bridgeport mill there maybe some thread forming tools

-- Bob Kenosha Wi.

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14584 posts in 2272 days

#4 posted 1034 days ago

The Woodwright, Roy Underhill, had an episode a few years ago about making some threading cutting tools.

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

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1988 posts in 2128 days

#5 posted 1033 days ago

-- what a long, strange trip it's been...

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Bob Kollman

1796 posts in 1787 days

#6 posted 1033 days ago

I’ll be …. there is a thread forming tool form the wood lathe….Learn something new every day!!!!

-- Bob Kenosha Wi.

View rance's profile


4125 posts in 1756 days

#7 posted 1033 days ago

There’s lots of thread chasers here on LJ. You look at one thread, then down at the Pulse page and… bing, you’re off on another thread. I’ve spent DAYS chasing threads.

Seriously, check out the Thread Master. THAT’s the one I drool over. A similar idea here.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View Michael1's profile


403 posts in 1256 days

#8 posted 1033 days ago

Thanks for the Link Bob. that answered my question of how to use this tool.

-- Michael Mills, North Carolina,

View horologist's profile


93 posts in 2335 days

#9 posted 1033 days ago

I have some limited experience in using thread chasers on an antique treadle lathe. The best source for instruction I have seen is the DVD by Allan Batty. Available at Craft Supplies USA=.

-- Troy in Melrose, Florida

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