M12x1.5 Tuner Nuts Adapter Tool - 70mm Lentgh

Used for certain aftermarket wheels that have a smaller bore and cannot fit the factory nut for wheel stud conversions.?

This is the after tool to tighten and loosen that splined internal nuts? DST20A? and? ?DST20A-ZNNI.?

Only one needed per wheelset or get 2, one for a back up if you lose it.?