Pro: cut very fast in wood, good balance with 3 cutting teeth, deeper cutting than any bi-metal hole saw, cut piece comes out easily, sturdy case, uses 5/8-18 arbor with standard 1/4" pilot bits, includes tiny diamond sharpening tool and hex wrench for arbor.
Cons: high speed steel cutting teeth are limited to wood, limited number of sizes with none smaller than 2-1/8 inches, case holds 4-1/4 inch as largest size and 8 hole cutters at most.
Much faster than a bi-metal hole saw in wood and drills can cut twice as big a hole with the same drill. Good hole cutter for use with cordless drills. Vastly superior to Lenox One Tooth but not quite as good as the Blue Boar.