I need to cut reinforced concrete posts (about 3 inches square) in my garden. How easy is this with a grinder? How many discs am I likely to need per post (I realise I'll need different discs for concrete and metal). Never used a grinder before!!
Bachgennewydd
A dry diamond blade will be much more efficient. Harbor Freight has them for about $10 (small 5" grinder type blade) They also make dry diamond blades to fit circular saws which may be safer and better.
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