Plotter cutter blades:
Paul from Rainbow stitches Christchurch recommends;
Purchasing blades fromĀ http://www.cleancutblade.com/ they have a great selection and are significantly cheaper than the major suppliers here in New Zealand. You may find that you can get a better quality product for a 1/4 of price. This relates to blades for plotter cutters and solvent printer machines, etc.