1/2" - 12mm Hole Reducer (4 pack)

These ½” to 12mm hole reducers fit in a ½” hole of Actobotics Channel and allow you to use 12mm items, such as 12mm flanged bearings. The length that protrudes into the channel is just shy of half of the channel wall thickness so that, if needed, a reducer can be installed on each side of the channel.