word

http://s33.postimg.org/wrz5106v3/DSC_0014.jpg

£9 140mm holesaw

from http://www.ebay.co.uk/itm/110-200mm-Bi-Metal-...0-fCHi0waA

goes through like butter if you don`t press too hard

you can get the edging from £1.29 meter

http://www.ebay.co.uk/itm/200904862153?_trksi...EBIDX%3AIT