How to Distinguish VAG HU162T 8-Cut, 9-Cut and 10-Cut?

As titled, how to distinguish VAG HU162T 8-Cut, 9-Cut and 10-Cut key blades? So we can properly cut keys using xhorse dolphin or condor key cutting machines.

VAG HU162T Difference 1

The picture shows the side of the 3 keys.
From top to bottom, they are 8-cut, 9-cut and 10-cut.

 

The 8-cut (HU162T (8)) key is the easiest to distinguish.

VAG HU162T Difference 2
It has only one fixed cut on the side and is straight.
The effective surface is on the top.

 

The 9-cut and 10-cut key can be quickly distinguished by the position of the effective surface.

VAG HU162T Difference 3

The effective surface of 9-cut key is on the top, while the effective surface of 10-cut key is on the bottom.

VAG HU162T Difference 4

VAG HU162T Difference 5
It is also possible to distinguish them by the number of cuts.
9-cut key has 3-side cuts

VAG HU162T Difference 6
10-cut key has 4-side cuts.

VAG HU162T Difference 7

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