Was going through some of my deceased dad's tools, and found this odd thing, looks like some sort of a hand-held mini pressing tool, or a mini bearing puller. If it helps my dad's line of work was machinist.
I'm a technician in a packaging goods plant (mostly working on paper-bag making machines and stretch-wrap winders), and the machines I work on have various sizes of left-handed threads and bolts. Rather than buying individual taps and dies, I'd rather purchase a set of both SAE and metric...