Piston Ring, Engine

Piston Ring Groove Width - First 1.2-1.25 mm (0.048-0.049 inch)
Piston Ring Groove Width - Second 1.53-1.55 mm (0.060-0.061 inch)
Piston Ring Groove Width - Oil Control 3.03-3.055 mm (0.119-0.120 inch)