Keep the digital ruler at arm's length of the Ruger
“digital ruler” = scale to weigh drugs, particularly coke
Ruger is a type of handgun. Also “arms length” is a clever play on words. The term “arms” also refers to weapons.
To help improve the meaning of these lyrics, visit "600 Benz" by Wale (Ft. Jadakiss & Rick Ross) Lyrics and leave a comment on the lyrics box