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Project by kiefer posted 08-05-2014 04:29 PM 5017 views 18 times favorited 11 comments Add to Favorites Watch

This whole thing started out with a search on a holdfast for square or rectengular dog holes and found no results after some extensive GOOGLE searches .
So since my bench has three rows of rectegular dog holes which I had done on purpose since my Uncles benches had that design and I had no intentions of drilling round holes I came up with this solution which I think will also work with a holdfast that is mallet driven .
I made up some square pieces of pine to fit the dog holes and drilled a 3/4” hole for the threaded rod and also added two pads of self adhesive sandpaper .
A arm with a clamping pad and 1/2” threaded rod a couple of nuts and a plywood disc wrapped with some timing belt for good grip took care of the clamp .
Two STOVER lock nuts and a piece of threaded work well for this and make for easy insertion and removel of the clamp and hold the object well and let me control the clamping pressure and can exert a good amount of pressure if rquired .

-- Kiefer

11 comments so far

View Nathan H.'s profile

Nathan H.

76 posts in 2451 days

#1 posted 08-05-2014 04:40 PM

If you can’t buy it, make it! Sometimes even if you CAN buy it, make it better! :D Great job as always Klaus.

-- - Nathan H., Iowa

View DocSavage45's profile


9019 posts in 3730 days

#2 posted 08-05-2014 04:58 PM


Looks like an elegant solution. (As usual) Is the body a hardwood? Cut on band saw? How do you thread the hole for the rod and is it resistant to the loads you put on it? A blog might be a way to give more details.

I’ve rebuilt a workbench, now a woodworkers bench. Thinking and planning about benchdogs and hold downs. This looks doable.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View hoss12992's profile


4177 posts in 2780 days

#3 posted 08-05-2014 05:12 PM

That is really cool, and I def see some of these in my future. Great job buddy

-- The Old Rednek Workshop

View jaykaypur's profile


4017 posts in 3295 days

#4 posted 08-05-2014 08:21 PM

A great solution for your needs and a super design. Something I also need but first I have to get a workbench instead of using a door! LOL

-- Use it up, Wear it out --------------- Make it do, Or do without!

View Jim Jakosh's profile

Jim Jakosh

25355 posts in 3993 days

#5 posted 08-05-2014 08:41 PM

Very ingenious, Klaus. you must have had a need for this set up!!

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

View doubleDD's profile


9739 posts in 2930 days

#6 posted 08-06-2014 01:00 AM

I like your idea of the square dog hole clamp. Been considering a dedicated assembly table and I have been looking at a lot of different clamping and holding techniques. This is something that I will consider using. Thanks Klaus.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View kiefer's profile


5802 posts in 3554 days

#7 posted 08-06-2014 01:53 AM

Thanks guys
The problem was I could not buy it so I had to make it .

The clamp arm is oak and cut on the bandsaw ,the hole for the rod is threaded and treated with CA glue and then waxed and seems to hold with all the pressure I can generate with the knob .
A blog will have to wait .

I look forward to your version .

Get that bench built you will enjoy it !
Take a look at mine in my projects

I had a need and found my solution by building it .

Yes this will work anywhere and can be made inexpensivly

-- Kiefer

View HillbillyShooter's profile


5811 posts in 3179 days

#8 posted 08-06-2014 03:01 AM

Nice job. Innovative as always and better than anything I’ve seen that is commercially available. You ought to have a Patent attorney on retainer. LOL

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View stefang's profile


17040 posts in 4221 days

#9 posted 08-06-2014 12:55 PM

Brilliant as usual Klaus. I will have to make one of these for my son who got my old bench with square dog holes. I got lucky with my new bench and I was able to use my sliding miter saw clamp on mine since I have round holes in my bench. I am quite amazed that you have come up with yet another use for timing belts. Great project and very helpful too. Thanks for posting.

-- Mike, an American living in Norway.

View Roger's profile


21030 posts in 3691 days

#10 posted 08-07-2014 12:05 PM

Fabricating is such a big part of woodworking. Nice hold-downs.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. [email protected]

View ToddJB's profile


8708 posts in 3018 days

#11 posted 08-07-2014 10:47 PM

Favorited. This is an awesome idea. One that I will likely steal. Thanks for sharing!

-- I came - I sawed - I over-built

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