That looks like it is for ‘DC**07020*’ inserts – so for example, something like DCMT070204, or DCGT070202 – broadly, the letters define the shape and style and the numbers represent dimensions.
Commonly the choices are between M for ‘Moulded’ or G for ‘Ground’, and the final variable requiring you to make a choice is the last number which represents the tip radius in tenths of a mm – usually available in 0.2, 0.4, or 0.8mm
For most applications (and especially non-ferrous work) the ground DCGT inserts are usually best choice for a hobby machine, and a 0.2mm radius would probably also be better – so those inserts would be ‘DCGT070202’.
DO the other holders in the set use the exact same tips?! – if not you’ll have to post them individually – some sets are ‘mixed’
– also have to say that particular tool shape would not be the one I picked out first – is there one called ‘SDJCR’ in your set?