Features Versatile Adapter Set: Includes 4 different drill chuck connectors to accommodate a variety of projects and enhance your toolkit's functionality Durable High-Speed Steel: Crafted from high-strength material, ensuring longevity and reliable performance in demanding tasks Precision Engineered Safety: Features finely processed screws for secure connections, minimizing the risk of slippage during operation Exceptional Build Quality: Each adapter is meticulously constructed for outstanding durability, ensuring consistent performance over time Effortless Operation: Designed to make your work more convenient and labor-saving, these adapters streamline tasks for increased efficiency Features: 1、The set including 4 kinds of drill chuck adapter to meet your various needs. 2、High speed steel material , and of high strength. 3、The screw is fine proced,these adapter can be safely used. 4、Each adapter is well made of and great durability. 5、These adapter will make your work more convenient and labor-saving. Specification: Item Type:Drill Chuck Connector Material:High Speed Steel Package List: 1 Pcs 1/4in Hex Shank 3/8-24UNF Thread Adapter 1 Pcs 1/4in Hex Shank 1/2-20UNF Thread Adapter 1 Pcs 1/2 Round Shank SDS1/2-20UNF Thread Adapter 1 Pcs 1/2 Square Shank SDS1/2-20UNF Thread Adapter Package List 1 Pcs 1/4in Hex Shank 3/8-24UNF Thread Adapter 1 Pcs 1/4in Hex Shank 1/2-20UNF Thread Adapter 1 Pcs 1/2 Round Shank SDS1/2-20UNF Thread Adapter 1 Pcs 1/2 Square Shank SDS1/2-20UNF Thread Adapter