Part 2 — Jig-Saw Blades

The ordinary form of jig-saw blade has a tendency to pull the fiber of the wood in one direction, thereby producing a jagged cut. To overcome this I made several blades with teeth as shown in the sketch. After the downstroke is completed, the teeth A will cut on the upstroke, the teeth B cutting on the downstroke, etc. The upstroke teeth should be a trifle longer than the others and from 4 to 6 in number.—Contributed by Phillip Caflish, Buffalo, N. Y.

Teeth Cut in Opposite Direction