Makita 763622-4 Casquillo conico DE 1/2" for models rp800x, 3612, 3612c, rp2300fcx, Multicolored : Amazon.co.uk: DIY & Tools
Makita 763803-0 1/2 inch to 1/4 inch Router Collet Reduction Sleeve
KATSU Electric Cordless Router Collet Chuck Reducer 1/2" to 1/4" and 3/8" Compatible with Makita and Merry Router Replacement Spare Parts SP10035015 : Amazon.co.uk: DIY & Tools