Black & Decker X29991-XJ Scorpion Blade Set for fast, accurate rip & cross cuts in wood, plastic & metals. 1 x Black & Decker X29961 Scorpion Saw Blade, 1 x Black & Decker X29971 Scorpion Saw Blade, 1 x Black & Decker X29981 Scorpion Saw Blade, 3 Piece blade set to fit Black & Decker Scorpion Saws model numbers: KS880 EC, KS890, KS890E & KS890GT.