Super Heavy Duty Large Diameter Root Saw Blade with Spokes Category_Default Category Products Root Saws and Cutters Aluminum Manhole Safety Roller Hose THC 8 Aluminum Manhole Safety Roller Hose Guide with Black Nylon Roller Our standard concave root saws are made of 1 8” alloy heat treated steel for increased flexibility when you need to protect your sewer lines or might have doubts about what you are getting into These are rigid concave root saw blades that have a specially welded center shaft that connects directly to your 1” hydraulic root cutter These saws eliminate the flexing and warping that larger saws can have at times as they travel down a sewer line