Any one familiar with using a thread chaser?

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Forum topic by Michael1 posted 09-23-2011 05:22 AM 2567 views 0 times favorited 9 replies Add to Favorites Watch
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403 posts in 1703 days

09-23-2011 05:22 AM

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

View Gary's profile


8320 posts in 2476 days

#1 posted 09-23-2011 06:16 AM

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


3879 posts in 2014 days

#2 posted 09-23-2011 07:26 AM

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: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View Bob Kollman's profile

Bob Kollman

1797 posts in 2234 days

#3 posted 09-23-2011 07:42 AM

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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16494 posts in 2719 days

#4 posted 09-23-2011 08:12 AM

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

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

View hairy's profile


2207 posts in 2575 days

#5 posted 09-23-2011 05:45 PM

-- stay thirsty my friends...

View Bob Kollman's profile

Bob Kollman

1797 posts in 2234 days

#6 posted 09-23-2011 07:44 PM

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


4196 posts in 2203 days

#7 posted 09-23-2011 08:45 PM

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 1703 days

#8 posted 09-24-2011 04:14 AM

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

-- Michael Mills, North Carolina,

View horologist's profile


101 posts in 2782 days

#9 posted 09-24-2011 04:32 AM

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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