corian is basically a thermoplastic.
if you use a drill bit on a low speed to only cut and not burn you can bore a hole for a variable speed jig saw or a slow speed rotary cutter
the trick is NOT TO GET IT hot or it will melt or burn
tip is practice cutting a piece of plexiglass about 7/16" thick.
tape the area up well so your tools do not scratch the surrounding surface, blue painters tape works well.
the jig saw blade will work well but it will clog up with softened or hot corian pieces.
slow is your friend
USN Retired, Life time member of the DAV.
Enjoying the 2008 Damon Tuscany 4056, no your eyes are fine, there are 6 slides