M236/1 Combines a circular sample cutter M236A 100 cm² x 5 mm depth of cut, cutting pad + 12 spare blades, with a programmed battery-operated dlectronic balance to provide and accurate, portable system for determining fabric yield in g/m² and oz/yd² A sample of 100cm² is cut and placed on the scale which is switchable from g/m² to oz/yd² M236/2 Combines universal manual lever sample press with 68.35mm (2.698 in) diameter die, ejector and 100 cutting pads, together with a programmed battery operated electronic balance. Provides and accurate, portable system for determining fabric yield in g/m² and oz/yd² 8 samples are cut across the fabric width and placed on the scale which is switchable from g/m² to oz/yd².