Cordless Angle Grinder for chasing stone wall? Plus can I use a mortar rake with stone?

[udaman]

Hi

I've whittled down my choice to a Makita or a Parkside which will be in Lidl stores from Thursday. I can't start until next week and was just reading up on them. I found that:

- The Makita manual says that the maximum disc thickness is 6.4mm.

- While the Parkside says 3mm!!!

Is that a "we can't condone using a thicker disc" type maximum? Or are they saying a thicker disc physically wouldn't be compatible/won't fit? Does anyone have a 5" Makita or a Parkside they could check this on? Potentially scuppering my idea of using a thicker disc.... :(

Ta