How to do a cross-cut test according to ISO and ASTM

This video shows you how to evaluate the adhesion of single-or multi-coat systems according to international standards (ASTM, ISO) as a so-called cross-cut test. More info: www.byk-instru...
Types of BYK-Gardner cross-cut testers --0:11
Multi-cut blade with one cutting edge
Multi-cut blade with 6 cutting edges
Cross-Cut Tester - Procedure:
Make a lattice pattern in the film with the appropriate tool, cutting down to the substrate -- 0:20
Brush in diagonal directions 5 times each, using a hand brush -- 0:40
For certain substrates the additional usage of a tape is recommended -- 0:51
Examine the grid area using a magnifier -- 1:13
Classify adhesion results by using criteria of the ISO 2409 or ASTM D3359 standards -- 1:21

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Which tap? What is tap company?

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How to use this test on the rounded surface?