This wrench is marked "HM",  8 x 12, "RK" followed by an "A" and "3F1".  I think it is for a motorcycle, maybe 1960's?  Does anyone know what the 3F1 stands for?  Is it for a Honda?
Thanks for your help,
Barb

HM is Honda Motors, as you guessed. I believe it is a motorcycle wrench (~ 70's) , but the toolkit wrenches aren't all that well documented for the Honda motorcycles (There are also auto toolkit wrenches...)

8x12 is the size (millimeters), RK is supposedly for "Repair Kit" (what the wrench was for, the tool kit), The 'A' supposedly means something*, I don't know if 3f1 actully means anything ...


(Supposedly the wrench should be marked RK *or* A , not both LOL)

It is for a motorcycle from my research the rk in the circle for lack of a better term and a are normal for late 1960's up until I believe 1972.  It is a motorcycle wrench, because of size.  It also has the small logo vs the larger logo .  I believe this wrench to be from between 1968 and 1972.  The 8x12 was issued with the 1968 cb350 ko  and later with the cb750 and other bikes after 1968.

Thanks,
Kirk

Thanks Kirk and Rusty, appreciate your help!
Barb

Are you gearing up for another sale Barb? I would visit you again.

Since it looks like our winter is over, we are aiming for mid April for our next sale.  I will let you know as soon as a date is set.
Your website has been a real help to me in getting info on all my tools!
Thanks so much!
Barb