Just on a related point, the tool is also called an oscillating multi tool. Lidls own brand is good and costs around £40 IIRC and fits the standard attachments.
its probably one of the most useful tools I own. Being able to cut forwards (and with so little oscillation that it won't cut you) is so handy.
Makes cutting light switch holes in plaster, getting behind skirting to remove nails and getting grout out from between tiles a doddle.
With a bimetal blade fitted, will do many of the jobs of an angle grinder but with no sparks.
you know when you buy something and every time you use it you go over all the jobs in the past that it would have made so much easier. For me, this is that tool.