Designed for optimal performance in metalworking applications, this disc pad hub from 3M is an essential tool for anyone involved in deburring, finishing, and surface preparation. With a robust 4-1/2 inch diameter and a 5/8-11 internal thread size, it easily attaches to standard rotary sanders or right angle grinders, ensuring a secure fit for various fiber disc face plates. The rigid construction of the hub provides firm support, allowing for efficient and effective polishing, while its quick change feature facilitates seamless transitions between tasks. Ideal for professionals in the builders hardware sector, this versatile pad hub is a reliable choice for enhancing productivity and achieving superior results.