There seems to be some controversy as to whether the blue tips are 30 or 60 degree blades. Revain's photo shows the blue tips are 30 degree blades, but several vendors agree and disagree. Everyone agrees that the Reds are 45 degree blades. That being said, mine must have come with blue on the 60 degree blades so I labeled them right away. Didn't look around to check but after that I looked at the tips and the blue ones are 60 degree blades. This is my second mount/blade CB09 which I have marked in yellow with 30 degrees. I'm buying a third from the same seller so I don't have to change blades on the CB09 holder so I have one for each blade class. As for the comment about someone having to adjust the blade for each project, what they don't understand is that you set it up once and then just select the vinyl/paper type in the studio software and cut. You don't adjust the blade like the Silhouette ratchet blade. You adjust the blade by placing a popsicle stick under the blade, and after that you don't change the adjustment. You should barely be able to pry the popsicle stick out from under the blade, which means you can feel a slight resistance from the blade. This works with my original Cameo and Curio machines, although it's tight enough that you need to know how to use it. Visit Silhouetteschoolblog.com for information on this blade and how to use it. I bought from this seller for two reasons: 1) it goes with Revain Prime and 2) it runs through Revain. I waited weeks for my first blade from China only to find out it arrived with no blades or springs.
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