What Stanley is to planes and Keen Kutter is to axes and pocket knives, Disston is to handsaws. Henry Disston began selling saws in 1840, eventually manufacturing everything from crosscut saws, designed to cut across the grain of a piece of wood, to rip saws, whose teeth help keep a cut straight when sawing with the grain. Other types of saws produced by Disston and other tool manufacturers include backsaws (with or without a mitre box), coping saws, keyhole or compass saws, and hack saws, which are designed to cut through metal. Pruning saws are another family of saws, as are antique two-man saws used by lumberjacks to fell trees.