Good answer Chuck. Note that there are 3 different styles of centering devices for the 1617. You can download the manual in our reference section for full instructions. The black centering device is used for centering the newest versions sub base plate which is adjustable for perfect alignment; it also works with the new MR23.
I only have images of two, will edit and add the third soon.
"Living in the D" (this means Detroit!)
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Last edited by Mike; 08-23-2011 at 10:42 PM.