8 1/2 x 48 T red Perma-SHIELD. For the serious cabinetmaker or trim carpenter, the Freud LU91R series has the blades that give them the competitive edge. These blades fit most sliding miter saws and deliver a performance boost that results in faster, cleaner cuts that require less sanding and filling. Thick MicroGrain carbide tips. Laser cut blade bodies and expansion slots. Kickback reducing design. Tri-metal brazing for impact-resistant tips. Perma-SHIELD permanent coating is a superior aluminum alloy coating that helps reduce friction, heat build-up, gumming, and is resistant to rust, which add up to longer blade life. Covered by Freud's Limited Lifetime Warranty.