Einhell Arcurra Power-X-Change 18v cordless hedge trimmer part 2-overgrown hedge. 

In this video you will see how the Einhell Arcurra hedge trimmer works.It is tested on overgrown hedge,some sprigs are bigger than 14mm but it cut them easily. NOTE:after you finish working clean the blade with a wet towel otherwise the blade will oxidize in few days.