A general RF inductor mainly uses the E12 or E24 series, but Murata RF inductors feature inductance with narrow steps for greater convenience with the matching circuit.
For example, the LQP series of film type RF inductors offers a lineup of products with a standard 0.1nH step for inductance value at or below 4.3nH.
The LQW series of wire wound type RF inductors also provides narrower than standard steps, and offers a lineup with an inductance value of over 100 items in the entire series.