Check the listing for details. 2 pc Collet Reducer Bushing for 8mm, 1/4" Router Bit GSA. Condition: New. Listed at 11.75 USD. 2 pc Collet Reducer Bushing OD 1/2" TO ID 8mm/1/4" New, Quality and Precision. Made by Steel. 4 pc Collet Reducer Bushings. 2 pc of Reducers are OD 1/2" and ID 8mm and 2 pc Reducers are OD 1/2" and ID 1/4" Collet Reducer is used to hold 8mm( 1/4") shank Router bit on 1/2" collet. Details Reducer Outside Diameter 1/2" Reducer Length 1-3/16" Reducer inside Diameter 8mm/ 1/4" 1pc of reducer for 8mm bit and 1 pc of reducer for 1/4" bit Shipping Shipping and Handling Fee to anywhere (Hawaii, Alaska, Guam and Puerto Rico) in the US (Domestic and APO/FPO/DPO Mail) is Free For Canadian shipping, S&H Fee is $11.00, $8.00 for Each additional Item with First-Class Package International Service, I will ship to worldwide (United Kingdom, Europe, Germany, Asia, N. and S, America and Australia). S&H Fee will be $14.00. Each additional is $11.00. All shipments are usually made within 24 hours of receiving payment during regular business days.