Sat Nov 08, 2008 7:13 pm by MBI
I've seen some locks where there is no rhyme or reason for different colored wafers. It just seems like they put different finishes on different batches for some random purpose. It's likely that they are all brass, but some are left unplated, some are copper plated, and others are either nickel or zinc plated.
On some brands of wafer locks it's deliberate, and that's how they differentiate the different wafer sizes (cut depths). On other brands, they stamp a number somewhere on the wafer. Some don't mark them in any way at all.
I find rekeying wafer locks to be one of the more enjoyable locksmithing tasks. I don't know why but it helps me chill out. Very zen. Over the years I've started accumulating more and more wafer lock rekeying kits of different types. I guess we all have our eccentricities. That's one of mine.