Astro Pneumatic Air Saw Blades for Astro Pneumatic 129TW – 24 Teeth per Inch 5PC Set 5SAW – Yellow Sleeve Astro Pneumatic Air Saw Blades for Astro Pneumatic 129TW – 24 Teeth per Inch 5PC Set 5SAW included 5 bi-metal multi-purpose saw blades that come in a vinyl pouch for easy storage. Astro Pneumatic Air Saw Blades for Astro Pneumatic 129TW – 24 Teeth per Inch 5PC Set 5SAW makes blade replacement quick and easy and can cut through pipe, mild steel, aluminum, plastic and fiber glass.