1、Excellent Stainless Steel Material: Our trailer jack handle adapter is crafted from excellent stainless steel, providing excellent wear and erosion resistance. Compared to aluminum alloys, stainless steel offers higher hardness, reduced deformation, and enhanced durability. The adapter features a 1/2 inch shaft hole and a 1/4 inch through hole, making it compatible with 1/2 inch drive socket adapters. It can also be used with 1/2 inch drive ratchets or breaker bars. 2、Easy To Use: The trailer jack electric drill adapter is designed to meet specifications in terms of shape and functionality, ensuring ease of use. Simply place it on the 1/2 inch shaft and secure it before driving with a drill. Its user friendly design allows for quick and convenient operating, saving time and effort. 3、Good Compatibility: This trailer jack handle adapter replacement is specifically designed for use with top wind trailer jacks with crank handles. Its versatile compatibility makes it a practical addition to your toolkit, providing seamless integration with various equipment and applications. 4、Efficient Power Transfer: The hand crank trailer jack adapter ensures efficient power transfer from your cordless drill to compatible tools and devices. Its reliable construction and accurate design guarantee consistent performance and optimal power transfer, enhancing productivity and effectiveness. 5、Wide Application: This jack crank handle cordless drill adapter has a wide range of applications, it can be used in automobile maintenance, factories, workshops, docks and so on, which is very practical. Item Type: Jack Crank Handle Cordless Drill Adapter Material: Stainless Steel Shaft Hole: 1/2in / 1.27cm Through Hole: 1/4in / 0.64cm 1 x Drill Adapter 1 x Socket Adapter 1 x Screw 1 x Nut 2 x Washers