Trend IT/807320H Disposable insert up down shear Up & Down shear router cuttersDisposable insert straight router cutter complete with two up and shear flutes and centre tip. Shear flutes squeeze material into the middle to give an extra fine finish on both surfaces of laminated and veneered board. Replaceable inserts ensure a constant cutting diameter and finish quality. Centre tip for improved boring. For use on routers and machining centres with CNC control.Specification-D=20 mmCut lng.=30 mmOverall lng.=110 mmShank Diameter=25x55 mmRecommended speed=18000