Stone Pathway Paver Hammer and Chisel Cut Split Along Straight Line

I had the honor of working alongside a savant stone cutter. He had a gift of reading the stone pavers and knowing exactly where and with exactly how much force to strike the stone to get the perfect lines. It's astonishing how accurate of a line cut you can get just by tapping along the desire path lightly several times. The shock waves seem to perfectly prime the stone for breaking along the line.