The used one I have is the following...
Layer 1: 0.15mm (bottom of head)
Layer 2: 0.55mm
Layer 3: 0.05mm
Layer 4: 0.15mm (top of block)
(total = 0.9mm)
Holding it together with the verniers as tight as I can I get ~1.2mm.
I'm not 100% sure what the installed thickness is.
Hope that is of some help?
Cheers
Wilbo
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