Tungsten carbide replacement blades for Graphtec plotters using CB09U blade holders. Same tolerances as OEM at a fraction of the cost — and since blades are a running consumable, that's where the savings actually land.Which angle do I need? Angle Best for 30° Thin and delicate materials — standard vinyl, thin HTV, fine detail. Shallowest angle, longest blade life on thin stock. 45° The all-rounder. Most vinyl, HTV, and cardstock. If you stock one angle, stock this. 60° Thick and specialty materials — flock, glitter HTV, reflective film, sandblast stencil, high-density vinyl. Don't run a 60° blade on thin vinyl. The steep angle cuts through the liner, lifts the material, and wears the tip out early. Match the angle to the stock.Specifications Material: Premium tungsten carbide — long blade life, resists chipping Fits: Graphtec plotters using CB09U blade holders Pack sizes: 2-pack and 5-pack Note: Compatible replacement blades, not manufactured by Graphtec. Good for Heat transfer vinyl, including flock, glitter, and metallic Signage, decals, and fine lettering Reflective and sandblast materials (60°) Stencils, scrapbooking, and packaging Getting the most from a bladeSet depth so the blade cuts the material and only scores the liner. Keep the holder clean — adhesive residue on the shaft stops the blade swivelling freely, which shows up as rounded corners on tight curves. If cut quality drops after cleaning and re-testing, the blade is done; replace it before blaming the material.