An innovative design on Lenox T2 metal-cutting reciprocal saw blades is said to double the blade life and improve performance up to 25% over Lenox's previous generation of blades. Optimized tooth geometry minimizes friction and resulting heat buildup that results in premature blade dulling and failure. The technology is being applied to the entire range of Lenox Gold, Lazer, and Bi-Metal blades. Price: $13 to $20 (5-pack). 800-628-8810.