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This is impressive. I just saw these keyring pliers listed on mytypewriter.com. In addition to the dual-plate removal and attachment pliers, the kit comes with a shift key removal and attachment plate. They also have punch-out key legends too, and some other extras. The pliers are based on the vintage Schollhorn Bernard style pliers. It is like seeing a small portion of the Ames catalog come back to life.
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I've been wanting to get my hands on one of these for a long time, they retail at about 400? Charles did a fabulous job on them and I may scoop a pair of they come back up for sale.