WANTED: Multi Purpose Tool (Swalwell NE16)

WANTED
Multi Purpose Tool
Swalwell NE16
DESCRIPTION
Hi there,  I am after a multi purpose tool (angle grinder type you change blade on it) to cut a bit of bath tile to find out where a leak is. (It's just less than a 2 inch cut that I need) It feels such a waste to buy a new tool when it's just going to sit around the rest of the time. Thank you