KOSTYUK ECO / FSRE steel props with 3mm dogdrive connection.
The 3mm hole is already drilled and reamed to 3mm , but the prop still needs to be cleaned and balanced.
New 12th series is an evolution of the 9th series wide blade prop
New 10th series is an evolution of the 5th series
New 11th series is an evolution of the 8th series
