LENOX 20552418R

These blades are shatter resistant, with a high wear and heat resistance. Their shock resistant teeth provide a more aggressive cut. This model has 18 teeth per inch, measures 4 inches by 3/4-inch by .035, and is intended for work with heavy gage metal (1/8 - 1/4-inch thick), conduit and tubing, opening wood crates (including nail-embedded wood), and removing wood siding or shingles.