I use a bench vise...great results too! Just move the edges around and use just enough pressure to crack it open and carefully separate the halves so as to not contact the coin...ware goggles!
Have fun cracking them open. Here’s a hint for you...It’s not like cracking an egg out of its shell. Lol
The grades are low but their graded. I would leave them alone, but of course the decision is yours, good luck.
Personally I really hate 'slabbing' and how it affects the market (although it has been accepted in the USA for much longer than it is here in the UK, where generally it is uncommon). Collectors (and dealers/ auctioneers) should have faith in their own judgement. I fully agree with "furry frog"'s chainsaw woman.
IF I was going to buy coins and have a CHOICE of slabbed or UN-slabbed around the same price, DUH I'd go for the slabbed. Think hard about the "bird in hand" you have now.
Yes and that’s exactly why you should leave them in the slabs. Just buy new low grades for the album, raw of course.
When time comes to sell, Will the buyers of the two "Details" coins realize they are "Details" coins? Even at those grades there is a price difference. Both of those coins are "keys" in their series. Just sayin'.
Since they are mostly all low grades, I would assume you purchased these with the idea that they were genuine and authentic coins. Feel free to crack them open and place them in your albums. If they were high grade (AU &/or uncirculated) I would hesitate to crack them open since (by being slabbed) they would command a much higher value/price tag.