Unfortunately, however, is also here again the product description error.
Indicated on the packaging, is a bore diameter of 60 mm.
By adhering to this requirement as the implementation in the bore has a game later, followed here but already discussed in other reviews.
The tight fit must then, if necessary, by wrapping with tape, etc. be made subsequently.
I have before installing the implementation measured (thanks at this point for the information in the previous reviews) and then manufactured according to a hole with 59 mm diameter.
The implementation can be in sinking to well 2/3 of its height and then sits for an easy final blow with his open hand, firm and fits in the hole, they also will not twist.
The product dimensions, the size of the packaging and not the dimensions of the cable gland has been given here apparently.
Annoying, but unfortunately are piling up here at the time wrong and not consistent product dimensions - pity.
My two copies (! 60 mm variant) have the following dimensions:
Mounting diameter: 59 mm
Outside diameter (overall): 68 mm
Inner diameter of implementation: 52 mm
Depth of the inner ring: 10 mm
Depth (overall): 15 mm
Shipping and delivery as always without complaint.
Conclusion: If you do not want a cheap-sounding plastic on the desk, should strike. Etc. Who plug power supplies must fumble through the opening, should prefer to grab 80 mm version.