[hgl1]

I used some old combine header pickup teeth and ended up with this.
Even managed to hook 1 tooth and lifted up the back of the tractor off the ground with it so they should be strong enough.

 

[PA318Guy]

Looks like you should be able to dig with it now!

 

[slkpk]

The teeth make a big difference when working in hard packed soil. slkpk

 

[Sergeant]

The teeth make a big difference when working in hard packed soil. slkpk

:ditto:

 

[wizzo]

Looks like it should have some bite now!!!