[FW] Wedge Spinner in time for Robo Challenge champs!

[Rapidrory]

Filing isn't really an option with hardox unless you have a power tool to do it for you; it's not called a ware resistant steel for nothing! Paint scrapers are used quite a lot and have been shown to get underneath most things with a lot less effort than filing hardox (something like this would probably do: http://www.ebay.co.uk/itm/EXTRA-WIDE...0AAOxy~ilSPeiz)

For drilling hardox, a fresh cobalt drill or similar and plenty of cutting fluid will do the job nicely.