1、MAIN PURPOSE: Bench drill return coil spring, can return the socket to the top after drilling is completed, which is efficient and practical. 2、SPRING STEEL: Made of excellent spring steel with chrome plating finish, which has good corrosion resistance and oxidation resistance. 3、APPLICATION: Used for various vacuum cleaner coil spring, volumetric tube coil spring, and safe belt coil spring, simple and practical. 4、FOR BENCH DRILL: This return spring can be used with a bench drill and can be used for both horizontal and vertical types of bench drills. 5、SPECIFICATIONS: Includes 2pcs bench drill return springs, with a width of 10mm, compact structure, which is easy to install and use. Item Type: Return Coil Spring Material: Spring Steel Small Outer Diameter: Approx. 37mm / 1.5oz 2 x Return Coil Springs