"The Sophia tremolo’s design is such a vast improvement over previous systems that it’s an understatement to call it the most significant tremolo system upgrade introduced since the Floyd Rose." Guitar World
Stainless Steel Risers
M7 x 05 pitch -- OFR® compatible
Lock with 2mm internal setscrew
Sealed Inserts -- .394 ribbed [10mm] general dia. -- .0973 for 3mm lower portion to form the sealed end -- 900" long
Setup with screwdriver
Side hole accessed by short leg of 2mm hex wrench in a fix...