Router bit for knock in T edging for trimming interiors. I made my own interior and used this bit to allow me to finish off the edges with t trim. It now retails at £42.95 I paid £39.95 Selling for £20 plus postage. It's cutting teeth are in great condition with no chips. http://www.magnummotorhomes.co.uk/e...g-Tools/Router-Cutter-For-Our-Knock-In-T.html Sorry Crap photos because my phone is ancient.