is used to cut washers, seals and rings up to a diameter of 34 "(19.1 mm), the knives can be easily screwed onto the mounting disk and can be combined with each other, case made of polypropylene, impact-resistant and chemical-resistant This set consists of: ? knives : Ø 18 "-316" -14 "-516" -38 "-716" -12 "-916" -58 "-34" e mounting disc for knives Ø 2 to 20 mm and 18 to 34 "