Iibhaluni ze-PTA zebhaluni zibandakanya ibhaluni ye-0.014-OTW, ibhaluni ye-0.018-OTW kunye ne-0.035-OTW ibhaluni, ezilungelelaniswe ngokulandelelana ukuya kwi-0.3556 mm (0.014 intshi), 0.4572 mm (0.018 intshi) kunye ne-0.889 intshi ye-3. Imveliso nganye iqulathe ibhaluni, Ingcebiso, ityhubhu yangaphakathi, umsesane ophuhlisayo, ityhubhu yangaphandle, ityhubhu yoxinzelelo edibeneyo, i-joint emilise uY kunye namanye amacandelo.