90B-“FINISH”-9mm ,150 grit. Last up to 40 procedures. Weight-2.60gr. Used in Pedicure Procedures. Fits pedicure machines that use 2,35mm or 3/32″ shaft. Has recommended rotation speed of 22 000 rpm. Used for final polishing of areas between toes after using 90R and 90G bits. To be sterilized in disinfectant liquid before re-use. Work with protective safety glasses. Best way to clean epithelial debris from the drill bits is with an ultrasound sterilizer. Not to be heated above 70 C
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