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Greenlee Tapped, Walnut Center Marking Tool

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Project by DeLayne Peck posted 03-29-2015 01:30 AM 1805 views 3 times favorited 8 comments Add to Favorites Watch

This little project was more about experimenting with a Greenlee combination drill tap than edge marking stock. Add, too much nice walnut scrap and the need to fritter.

The Greenlee drill tap bit is convenient. It drills and threads in one combined operation. The leading segment of the bit drills a slightly less that 1/4” hole. The second segment follows and threads the hole to 1/4” and 20 threads per inch. This accommodates 1/4” rod which can be all over the shop for jigs. To avoid stripping the threads, a cordless drill in a portable drill stand was used to slowly cut threads.

Experimentation yielded an excellent way to turn custom knobs with a threaded rod insert. I threaded a piece of scrap. Cut it to an 1 1/2” cube. Screwed in the threaded rod with a touch of Gorilla glue. The rod, cube attached, was then inserted in a Barracuda key chuck on the lathe.

Dimensions: Body, 1 1/2” square x 4 1/2”. Three eights (3/8”) dowels on a 1 3/4’ center.

-- DJ Peck, Lincoln Nebraska. Lord, keep your arm around my shoulder and your hand over my mouth.





8 comments so far

View kiefer's profile

kiefer

4881 posts in 2133 days


#1 posted 03-29-2015 02:30 AM

Cool tool application .
I will look for one and give it try it would make a lot of things easier .
But as far as centre line markers go I prefer my design .

Klaus

-- Kiefer https://www.youtube.com/user/woodkiefer1/videos

View DeLayne Peck's profile

DeLayne Peck

426 posts in 1667 days


#2 posted 03-29-2015 06:04 AM

I bow to Keifer! I was able to find his Centre Line Marking Tool. With a Top Daily and over 5000 views, the parallelogram design is preferable. It solves a shortcoming – running the center line to the very end of the board.

And, it would be a great application for the Greenlee Drill Tap.

-- DJ Peck, Lincoln Nebraska. Lord, keep your arm around my shoulder and your hand over my mouth.

View Hawaiilad's profile

Hawaiilad

2896 posts in 2487 days


#3 posted 03-29-2015 06:05 AM

I like the idea and wonder just how well the marker works…does it stay in a straight line when used? But I really like the post regarding the drill bit. I have never seen one before…where did you purchase it? Do you know if they come in different sizes? Thanks for sharing

-- Larry in Hawaii,

View DeLayne Peck's profile

DeLayne Peck

426 posts in 1667 days


#4 posted 03-29-2015 06:16 AM

Larry, Electrical Supply Houses sell Greenlee or they are available on the Net. Amazon has individual bits and sets ranging in size. Click here!

-- DJ Peck, Lincoln Nebraska. Lord, keep your arm around my shoulder and your hand over my mouth.

View Roger's profile

Roger

19881 posts in 2270 days


#5 posted 03-29-2015 01:16 PM

Awesome De. Thnx a bunch. I like that center line marker.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. Kentuk55@yahoo.com

View oldnovice's profile

oldnovice

5730 posts in 2834 days


#6 posted 04-06-2015 04:57 AM

Very nice indeed!
Much better than mine out of plastic.

-- "I never met a board I didn't like!"

View ptofimpact's profile

ptofimpact

348 posts in 1782 days


#7 posted 05-17-2015 05:33 PM

Thank you for sharing this I am making one from some scrap cherry leftover, if I can share a link, there is a method a man used to make a ‘tap’ from ordinary bolts, to cut threads into wood. Have used it on several occasions.

http://www.wkfinetools.com/contrib/dAssis/art/TapDie/TapDie-01.asp

-- Pete in NC

View DeLayne Peck's profile

DeLayne Peck

426 posts in 1667 days


#8 posted 05-17-2015 05:56 PM

Thank you, Pete. That’s a fascinating link. I saved it.

-- DJ Peck, Lincoln Nebraska. Lord, keep your arm around my shoulder and your hand over my mouth.

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