Fitment Fits for Mercruiser All Bravo lll Drives. Interchanges with part number 91-805457T1 / 805457T1 / 805457 both in function and performance. Function Used to install or remove the "Inner" Front Propeller Nut (2.75") on drives for further installing or removing the forward/closest to transom propeller. Use with 1/2" ratchet, breaker bar, impact wrench, or torque wrench. Superior Material Made of high quality solid steel with black anodizing, CNC process precision manufacturing，sturdy and durable, impact-resistant, corrosion-resistant for a long-term and reliable performance. EASY TO USE .
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