This 24 TPI Deluxe Universal Razor Saw (35-560) is pretty amazing. It cuts crisp dovetails and leaves behind a nearly perfect finish. Cutting on the pull stroke makes it easy and precise. Will cut dovetails up to an inch deep.
Made in the USA.
This deluxe version has a better handle than the regular Zona saws. Fine Kerf Razor Saw has a blade with .010in. kerf, 6-1/2in. length, 1-3/16in. depth, and steel back for stability.

Cuts in balsa, soft wood,hard wood, plastic, copper or brass. Leaves smooth edges behind.

from $8.42