Sensational planing results and details - planers that impress For decades, the unique detailed solutions and technical innovations of planers, thicknessers or combination planer/thicknessers from the Felder Group have been a particular highlight. The revolutionary Silent-POWER® spiral cutterblock or the Felder system cutterblock with self-setting knives provide excellent results and offer a quick knife change without time consuming settings or the requirement for expensive adjustment tools.