Key for IBM 9370 - 20

On Tue, 26 Nov 2019, jim stephens via cctalk wrote: With a depth mike (or improvise) laid across the face of the key, measure how deep the cylinder "section" cut is. There is nothing stopping a manufacturer from using different depths and/or different nomenclature (for instance, Schlage and Kwikset house keys have different depths, and different numberings) Besides depth, there are a couple of differnt spacings (7 V 8 cuts?), and even different center peg diameters (hence the cheap pick tools on e-Bay have 3 variations 7.2mm, 7.5 and 7.8) But, fortunately, most follow the leader. In SOME localities, code cutting is severely restricted, and sometimes requires that you provide proof of ownership of the lock (physically bring it in and/or formal request on your letterhead) If you have the lock in hand, many locksmiths will ignore the DND, assuming thet YOU are the one placing that there. 'course some will duplicate a key with a piece of tape over the DND! The numbers stamped on the key rarely correspond algorithmically to the depths. Instead, they are a pseudo-random identification of the key, and a well equipped locksmith can look those up in a "Code Book" to get the depths that are required. For example, XX2247 is one of the most common for minicomputers. There are also "Depgh And Space" books that identify the distance between cuts, and what depth distance corresponds to what depth number. But, here is THAT information: On Mon, 25 Apr 2011, Ethan Dicks wrote: http://www.locksafesystems.com/depth_and_space.htm#Chicago_Tubular_Space_and _Depth -- Grumpy Ol' Fred cisin at xenosoft.com