Drawbar Hammer wrench

[737mechanic]

Got tired of using my 3/4 wrench to tap my drawbar to unseat it so I made a drawbar wrench/hammer.

The parts are 7/8 brass rod a cheap tiawan 3/4 impact socket and and a piece of titanium rod that I get at work. I first bored out the impact socket and single point threaded it. Then I threaded the brass to fit the socket then drilled and threaded through both the socket and brass to make sure they would never loosen from one another. I then threaded the titanium rod and using locktite for studs I screwed them together.

All in all it turned out ok except for the knurling on the handle but since my knurls are pretty dull and the titanium is hard I didn't worry about doing it again as the crappy looking knurls will do there job just fine.

[steamin10]

I bet it works good.

Nice fine threads.

[737mechanic]

Works much better than the old craftsman wrench I was using. The threads that hold the brass to the socket are 28 tpi. If I thread something that doesn't need any specific thread pitch I usally use 28 tpi becasue it seems to be a good all around pitch and since my lathe does not have a QC gear box I have to change gears to get the different thread pitches so I tend to leave it on 28 most of the time.

[EdK]

Nice job on the tool

One question though, aren't those impact sockets hardened? Seems like it would be tough to thread if it's hardened steel.

Ed

[737mechanic]

Impact sockets are softer than a good normal socket which is why they down chatter when you are hitting them with a impact. Also I am sure the tiawan impact sockets are even softer. I wasn't sure at first if I was going to be able to bore it and thread it but after doing a test run and seeing how easy it was I knew it was going to be doable.

[EdK]

Thanks for the info on the impact sockets. I just may have to copy your tool.

Ed

[NorrisM]

How much lighter is the titanium over using a steel handle? It looks good especially with the titanium handle. How does titanium stand up to stress and time? Is it harder but more brittle than steel?

[Bruce_Mowbray]

Brilliant!! I have seen guys braze a huge blob of brass on the open end of their 3/4" wrenches to act as a soft hammer, but yours is a far better idea.