Mine has Rollgrip written on it. Boomans of Germany. Cant find any reference to them at all. Id like to. Cant even remember where i bought it. Im thinking it was from a tool shop we used to go to, ogle at tools we couldnt afford. They sold stuff like Stahwille, Bahco, Proto, Beta, SK Wayne. We could only afford Sidchrome, Fuller, Stanley etc. My 3/8 socket set, got at 16 yrs. Now 49 yrs old, reckon its still 70% original. Minimax. They replaced ratchets guts, unconditional guarantee, Repco agents. Mustve renewed for 30 yrs until no more parts available, maybe 4 times.