Universal Stick V-nails have a width of 10.2 mm. Just because they are called "universal" does not mean that they can be used in any underpinner. They are used in the Inmes IM-3P, IM-4P and IM-5P and in our FS 1000 and FS 2000 underpinners.
To avoid damage to your drive head, please only use Universal Stick v-nails in underpinners that call for that type of v-nail.
For a detailed price comparison chart of the universal V-Nails, click HERE.