A couple of pictures of tap detail.
Al Toolmaker said, it's a machine tap, spiral type. Usually they should be used with machine, they do the thread in one passage, as opposed to three stage traditional taps. The tap used is a M10 x 1,25mm,it's not new so it needs a good large grip to make enough force, normal short ratchet tool is not enough.
They are pretty fast and accurate in my opinion, above all in this case with many holes to tap
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