Not a clone, just a different branch of the family tree. As others have pointed out, the RHFT quick release ratchet was branded master mechanic, napa, allen, easco,and KD, to name a few. At any rate, it is NOS, although not really old as the KD is stamped into the handle instead of being on a rasied wedge. KD is still in business but, they don't make ratchets, wrenches, sockets, extensions, or screwdrivers (mechanics hand tools) any more. The mechanics hand tool division of KD was killed off at least three years ago to provide for Gearwrench's expansion. There are probably tons or at least several hundred pounds of KD hand tools being offered at various closeout places. Stock up while you can!! When they're gone, I'll miss them. It's a great ratchet.
