I've got probably a dozen different brands of sabre saws and reciprocating saws that are intended to be drill-powered. Most connect only to the chuck, via a stub shaft, but some are made to attach to specific models of drill. The amount of variation among them is incredible . . . I have one "Perfection" saber saw, which I cataloged as, "Aluminum housing, steel cover, arm, and shoe (no tilt), black painted wood top handle". It looks like the casting was cleaned up on a belt sander. Tooling looks identical to one labeled "Port-A-Jig". But I have no other information on either one of these. Can you post a photo?