Puncture is not the word I would use. You need to remove a bit of the hard outer coating then soak the seeds for a day in warm water. I think most folks use a nail file to remove the outer layer of the seed. You don't need to remove the entire outer layer. You want to see white.

I use a narrow triangular file. File on the opposite end of the seed from the circular attachment scar. It is only necessary to file down just enough to see a lighter colored area.

I've used a box cutter to make a TINY incision to the outer layer. I have to hold on to the seed with pliers and then carve the box cutter blade back and forth in the same spot until i see a bit of white. I would suggest you use some sort of pretection for your hands like gardening gloves or even mechanic gloves so that the risk of cutting yourself is minimized. Then i soak them in water. I've germinated them in water before too.

Thanks for the help. I finally was able to get to the white part of the seed. It worked with just using a regular nail file. I've now got them soaking in water.

Peaches