Whiteside Router Collet Reducer 1/4 in. ID x 1/2 in. OD is designed to fit inside a standard 1/2" router collet, allowing you to use 1/4" shank router bits with ease. This all-steel reducer has an overall length of 1-1/4", providing durability and precision for your routing tasks. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this collet reducer ensures a secure fit and reliable performance for your woodworking projects. Model Number: 6400