Superior Electric 1/2 in. Keyed Chuck is a high-quality drill chuck designed for durability and performance. Made from heavy-duty steel, this keyed chuck features a 1/2" - 20 UNF mount, ensuring a secure fit for a wide range of drill motors from various brands. Its robust construction makes it a reliable choice for both professional and DIY projects, providing excellent grip and precision when holding drill bits. This versatile chuck is built to withstand tough working conditions while maintaining smooth operation and long-lasting use. Model Number: J3113