hola-
i used to be a wholesaler for lockpicks*com who i think is also the owner of the "Brockage" namebrand.
i am not an expert lockpicker by any measure, i am able to do most padlocks and as a wholesaler i had access to those exact tubular pick (both the 7 and 8 pin versions) i could not open the bike lock or the keyed switch that were both 7 pin circular with the pics that you show. (btw those circular picks were discontinued. i liked them because wholesale price was only $30 and resale was generally $59 - $69) i dont know if they were discontinued because they are generally hard to use compared to the more expensive 7 and 8 pin picks that also featured a tightening collar that let you increase the tension on the pick arms. i was able to pick both the bike lock and the keyed switches with the expensive picks but never able to pick either with set like you have.
interesting note: the expensive picks that i mention have an adjustible collar can also be locked down once you pick the lock once. then you can even take measurements of the pick arms and write down the number. that way in the future you dont have to screw around trying to pick the lock you just set all the pins to their correct number then tighten the collar down, PRESTO like having the original key. one last note, if you have access to the original circular key (like if it was to stuff you are allowed to use at work or whatever)you can take the measurements of the original and set you pick without ever having to put yourself at risk taking time to pick the locks. the only other fact i can add to my post is that the measurement device is just a piece of copper with teeth labeled 1-10, that is how you measure the depth of the sucessfull pick or the original.
if absolutely necessary i could probably find a spare or at least take a picture of it.
hope i didnt rain on your parade too much
tecvoid
