These are tools that a craftsman is not permitted to sell during the seventh [year]: A plow and all its accessories, a yoke, winnowing fork, and the plowshare. But he may sell a hand-sickle, a reaping sickle, and a wagon and all its accessories. This is the rule: Any [implement] employed solely for sinful activity is forbidden [for sale]; [if it is employed] for [both] prohibited and permitted [activities], it is permitted [for sale].