My Rating 8.5/10
The metabo 18v cordless grinder is a good powerful little grinder that can also use hitachi slide batteries (as it should since they’re the same company). This will eat through everything as quickly as an electric angle grinder. Its worth getting a 6 AH battery to stay working for longer between recharges. Even though this grinder is fairly energy efficient and you should usually get most jobs completed without changing batteries. Its a good quality tool and should last for many years