not strickly tiling but looks the best place to post ,, im laying a new pattio around 40 / 50 sq mts ive seen some 600x 300 granit slabs they are approx 30mm thick,,, what i would like to know is how difficult these would be to cut,i have a tile saw but expect that this would not be up to the job,,, i also have a 9 inch angle grinder,, which might be my best bet? any sugestions ?