Adjustments can easily be made while the scoring set is mounted on the machine! Adjusting the scoring set is Quick and easy, Simply turn the dial to adjust the width of the score. Eliminates the need for shims, #EZ120-24-22, (D) diameter: 120mm, teeth: 12x2, (D) bore: 22mm & 3/4, kerf (B): (2.8-3.6mm), machine: fits most machines including altendorf, SCM, casolin Astra top, casadei Shark & lazzariez120-24-22 EZ Dial adjustable scoring set - shim free 120mm DIA x 24T 22mm bore, EZ Dial