How does this work?

[Chapppers11]

http://www.i4detailing.co.uk/acatalog/Festool_De_Nibber_LKZ-HM_1.html#aLKZ_2dHM

Its a Festool Hi-Tech Carbide De Nibber apparently.

I've read the description and had a quick google but I'm still unsure what it is and why its £48.

 

[wezzel98765]

http://www.detailingworld.co.uk/forum/showthread.php?t=233028

Shaves off a thin layer of paint?

 

[JD]

Precisely. It shaves off the rough layer of surface paint after a stone chip or scratch repair, meaning the user can ten polish the surface down evenly creating a more professional repair.