Double Purpose Design functions as both manual tool extension and power tool adapter for versatile applications in homes, workshop, and outdoor projects with effortless switching. SelfLocking Mechanism features secure grip systems that firmly holds bit in place during operate to slippage and enhances work . High Strength build combines steel and carbon steel construction for durability and wear resistance in demanding tasks. Wide Compatibility adopts standard hexagonal interfaces to fit most mainstream brand bit, offering broad adaptability across various tool systems. Package includes: 1pc Manual Electric Tool Bit Connection Rod