5/16"ID, 1/2"OD Product Description Collets are used to provide a strong clamping force to a router bit while reducing the required shank size of the bit in your router. 6401...
1/4"ID, 1/2"OD Product Description Collets are used to provide a strong clamping force to a router bit while reducing the required shank size of the bit in your router. 6400...