Here is a breakdown of blade gaps corresponding to each shave size:

R1: 0.008" (0.20 mm)

R2: 0.014" (0.35 mm)

R3: 0.019" (0.48 mm)

R4: 0.024" (0.61 mm)

R5: 0.027" (0.69 mm)

R6: 0.031" (0.79 mm)