Those hammers look exactly like the Matco ball peins that go for $300 a set. See link below.
Same hammer, rebranded?
https://www.matcotools.com/catalog/product/CDBP3SET/3-PIECE-DEAD-BLOW-BALL-PEEN-HAMMER-SET/
yes. Matco, Cornwell, Armstrong, SK, Carlisle, and about 15 others all use hammers made by Trusty cook in indianapolis. They are truly awesome hammers. they used to make them for snap on back in the day.
After using so many dead blow ball peen hammers, I'll never go back to a normal steel ball peen with a wood handle. you get so much more force and control when using a dead blow ball peen, and the shock to the hands is almost nonexistent. They dont rebound and when you are whaling on stuff, this is important to not destroy surrounding items.
I love my snap ons, but trusty cooks are nicer. Head profiles for weights are better and the handlers are skinner for most normal sized hands. snap ons and the big stanley anti vibe hammers have huge grips meant for sasquatch. Trusty cook is very loved around here. they offer tons of specials around the holidays and send out new products to demo before they are sold to the public. I wish Id have found them 20 years ago.