WHITESIDE #6401 ROUTER COLLET REDUCER - 5/16" ID X 1/2" OD

Whiteside Router Collet Reducer 8mm ID x 1/2 in. OD

Router Collet Driver Adapter 1/2" to 5/16" Carbon Steel Router Bit Converter

Whiteside Bearing with No-Mar Nylon Sleeve 1/2 in. OD x 3/16 in. ID

Whiteside Router Collet Reducer 1/4 in. ID x 1/2 in. OD

Whiteside Bearing 1/2 in. OD x 3/16 in. ID

Whiteside Bearing 3/4 in. OD x 5/16 in. ID