good quality, but the nest does not fit properly, the nest is soft and deforms at the ledge when twisted, I will refuse to buy another set from this manufacturer.
Pros
Specifications: Closed tuning ring nuts, thread size M12 x 1.5, 1.38" (35 mm) high and DIA 20, 60 degree cone/cone/cone seat. 6-point keyways 12X1, 5 set of 20 acorn nuts with a keyway wrench for 3/4"(19mm) and 13/16"(21mm). Please note that 51 is our hallmark, not the number of nuts.