Irola yokulinganisa idayimane isetshenziswa kakhulu ukulinganisa nokuzuza ukujiya okufanayo endaweni yamathayela e-ceramic ngaphambi kokupholishwa. Ngenxa yokuthuthukiswa okuqhubekayo kobuchwepheshe kanye nempendulo evela kumakhasimende ethu, amarola ethu okulinganisa idayimane agunyazwe ngenxa yokucija kwawo okuhle, isikhathi eside sokusebenza, ukusetshenziswa kwamandla okuphansi, umsindo ophansi wokusebenza, umphumela omuhle kakhulu wokusebenza nokusebenza okuzinzile. Kukhona i-Saw tooth, izinyo eliyisicaba kanye ne-deformation roller.