A search of the Interweb for "G4809594" reveals your Proto 20-piece metric set is JSCVM-20SA. It includes 6-32mm, except 20mm, 23mm, 25-26mm, 28-29mm and 31mm. Its 19mm wrench, JSCVM19A, has the longer overall length I'm looking for (11-3/64 in, as opposed to 9-3/4 in). You're right, Zoro...