• Best For: Operators with an 18-inch saw who need the TPX-40 formulation for deep dry cuts in masonry and concrete.
• Highlight: The 18-inch TPX-40 keeps the .125-inch blade width and 1-inch to 20mm arbor, while only the 20-inch moves to a wider .145 width.
• Expert Note: Part 168494 is the largest TPX-40 that still uses the .125 width; a saw that needs a 20-inch blade takes 168495 with a .145 width.