Lenox quality hole saws are now available in kits for all applications. Bi-metal construction means the teeth stay sharper longer. Positive rake teeth allow faster cutting with smoother and quieter cuts. Set includes 6 sizes: 3/4-inch, 7/8-inch, 1-1/8-inch, 1-1/2-inch, 1-3/4-inch, 2-1/4-inch, 2 arbors, 1 pilot drill, arbor adapter and plastic carrying case.