CMT Router Collet Reducer for 1/4″ Shank Router Bits

Description This handy bushing is for use in hand held routers to reduce the collet size to be able to use 1/4″ shank router bits in 1/2″ diameter collet chucks. Inside Diameter: 1/4″ – “d” Outdie Diameter: 1/2″ – “D” Total Length:1″ – “L”