U take what U have...
The tool is made of some slotracing parts by Parma. The aluminium disk is a whisper-jet rear axle belt pully and an Parma rear axle for a slot car glued together by JB Quick. Then simply glued to some 320 wet-n-dry paper with epoxy. Before the glue fully harden, cut it with a scissor. Use it in a dremel on low RPM's and use WD40 as lubricant. The paper last some 3 heads, then needs to be replaced.
Thats all for now, hope U got inspired for building your own FT-ride!?