Peak is a flint knapper who practices the ancient art of breaking a stone to produce a tool such as a spear point, knife or arrowhead.</p><p>The art requires a practiced hand with a controlled touch.</p><p>??Each time you hit the stone, if it breaks the way you want it to, you???re going in the right direction, Peak said. ??But one wrong hit, and you???ve got nothing but a pile of gravel.</p><p>?