between the tines of the fixed blade in case of the need for replacement by the user the tines in this embodiment are slightly flexible and preloaded together to provide the force needed to keep the cutting edges in contact at the point of shear further preferred embodiments of the cutter not shown in the figures may be derived from any of the above embodiments for use with stiffer grades of sheet material the cutter would be fixed in a convenient orientation to the user the work table being effectively replaced by a small moveable table on which the sheet material is held by the user or by other mechanical means in these embodiments the table and sheet material are held by the operator and drawn through the cutter these embodiments provide the user a better ergonomic position for fine close work and position the cutting region in a constant orientation further preferred embodiments of the cutter not shown in the figures may be derived from all of the above embodiments but with the moveable table being replaced by one or more rollers loaded by springs or other means against the drive and stabilising wheels if any are present separated by and locating the sheet material in these embodiments the paper.