28mm Ceramic Rotary Blades are very sharp and good for cutting composites, hard-to-cut aramids, and other expensive and or tough materials.
I tested a spent [ceramic blade] on psi! Dropped the cutting head @ 30 psi and it did not shatter! They cut carbon like butter, Dimension Hydra-net! Cut the Hydra-net 320 with 0 assist. That was a Cambria 44 leisurefurl main. I used the same blade to cut the Genoa for the Cambria in Hyrda-Net 380. If you are not familiar with Hydra-Net, it is a highbred of Spectra and Dacron. Its base is Dacron with Spectra ripstop. Pretty tough stuff. The carbon was a few sails. One main for a Swan 46 and a set of sails for a Kanter 48. All carbon sails where cut with the same blade. Have not broken one yet! Used 2 out of 5. Will be reordering soon.– Gary Leduc, Quatum Sails – Rhode Island