ISO 6360-3:2005规定了钻、精加工钻、刀具和手术器械的特定特性的代码，指的是器械工作部件上的齿类型。该三位数字出现在15位整数的10至12位，并构成15位整数中第四组三位数字，其原理在ISO 6360-1和6360-2中解释。 除了三种官方ISO语言（英语、法语和俄语）中使用的旋转仪器和附件的术语外，ISO 6360- 3:2005给出了德语中的等效术语；这些文件由德国成员机构（DIN）负责发布。然而，只有官方语言中给出的术语才可视为ISO术语。

ISO 6360-3:2005 specifies the code numbers for specific characteristics of burs, finishing burs, cutters and surgical instruments, which refer to the type of toothing on the working part of the instrument. This three digit number appears in the locations 10 to 12 of the 15-digit overall number and forms the fourth group of three digits in the 15-digit overall number, the principles of which are explained in ISO 6360-1 and 6360-2. In addition to terms for rotary instruments and accessories used in two of the three official ISO languages (English, French and Russian), ISO 6360-3:2005 gives the equivalent terms in the German language; these are published under the responsibility of the member body for Germany (DIN). However, only the terms given in the official languages can be considered as ISO terms.