Hi all,
I’ve bought an “invisible” magnetic door lock for a flush internal door (44mm thick), and my carpenter is currently struggling with the installation.
The manual requires:
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a long mortise (~130mm) in the door edge
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a front cut-out (approx. 45x87mm)
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a T-shaped internal cavity that apparently needs a “special tool” according to the manual
The issue is that there’s no jig or template provided, and the manufacturer just mentions a “special tool” without any details.
My carpenter is comfortable doing standard mortises with a router/jig, but this specific internal shape is the tricky part. He mentioned that this could be done with a CNC machine though.
My questions are:
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Has anyone installed this type of invisible handle & lock before?
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Is there a universal jig or tool that works for these?
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How would you approach the T-shaped cavity ?
Sharing photos/manual if helpful.
Thanks in advance!


