Tungsten carbide replacement blades for Graphtec plotters using CB015U blade holders.CB015U or CB09U?Check which holder your machine takes before ordering — they are not interchangeable. The CB015U is the larger-diameter blade used on many Graphtec FC and CE series plotters; the CB09U is the smaller standard blade. The part number is printed on your existing blade holder.Which angle do I need? Angle Best for 30° Thin and delicate materials — standard vinyl, thin HTV, fine detail. 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 kills the tip early.Specifications Material: Premium tungsten carbide Fits: Graphtec plotters using CB015U blade holders Pack sizes: 2-pack and 5-pack Note: Compatible replacement blades, not manufactured by Graphtec. Getting the most from a bladeSet depth so the blade cuts the material and only scores the liner. Keep the holder clean — adhesive residue stops the blade swivelling freely, which reads as rounded corners on tight curves.