Tenryu Pro Series Saw Blades for Non-Ferrous PRA-21660DN. 8-1/2" Dia., 60 Teeth, 5/8" Arbor, TCG Grind, .110" Kerf, 0 Degree Rake. For industrial non-ferrous applications. Pro Series. Tenryu's Pro Series for cutting Non Ferrous materials features heavier, laser cut, fully-hardened blade bodies that stay flat, giving you more precise and accurate cuts longer. Tenryu's Pro Series Non Ferrous saw blades are tipped with fine-grain, premium grade carbide that are fine-finish honed on all exposed surfaces down to 600 grit to give you smoother cuts and longer life. Tenryu puts a great deal of care in manufacturing their saw blades to ensure every blade is of the highest quality. See our article on making Tenryu Saw blades.