No more mistakes in buying the wrong size, less to have hanging around on your tack room wall. This innovative new bit adjusts to precisely fit any size mouth from 4.5" to 5.5". Simply twist the shanks in opposite directions and the bit size increases or decreases. No tools required. A simple concept that works. Mouthpiece is 13mm in diameter.
Adjustable mouth bit
Precisely fit any size mouth from 4.5" to 5.5"
No tools required
13mm diameter mouthpiece