Xellex, did you notice Wrenchnride used 2 jigs for this?
IIRC, the type 4 head has the studs slightly off-centre and two are on the other side of the 'oval-flange-centerline', hence you might need two sets of different jigs for this.
Correct me if I'am wrong here as to the reason you use two jigs Wrench? (sorry, forgot your real name mate)
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