You'll be buying more in different sizes; I find even the teeny-tiny "XS" (100mm) surprisingly handy.
Hmm... Do you like these ones over the shiny chrome ones? I felt the chrome ones were superfluous for my needs.
For times when you really don't want to mark something, they also sell plastic caps for most of the different sizes. For the 250s there's these
86 09 250 V01. Over here they come in packs of 3 pairs of covers meaning you can dot them around various places for the times when you want them... or lose them
![Blink [blink]](https://www.festoolownersgroup.com/Smileys/default/blink.gif)
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I did not know about these covers. Good to know about.
I've used tape before on regular pliers, but the serrated jaws just cut through unless you have so much tape that the pliers don't grip. I have a pair of Japanese soft jaw pliers with screw-on plastic jaws, but I found that when not using the entire width of the jaw, the metal part would sometimes spin in the jaws.