Mafell | NFU 50 Groove cutting machineGroove cutting machine NFU 50 offers flexibility of use and is an all rounder capable of executing an enormous range of timber construction tasks. An extensive range of accessories opens up further possibilities for day to day work. Replacement knives available here CUTTING DEPTH 50 MM (1 15 16 IN.) The NFU 50s sheer strength and outstanding motive power permits cuts 60 mm (2 3 8 in.)wide and 50 mm (1 15 16 in.) deep. SUITABLE AS A SKEW NOTCH AND