Scoring Blade - 180 x 4.4/5.4 x 30 z=30 Conical, 2/10/60 pinholes, Cut 85, 8° Hook Conical ATB Grind Saw Blade Application: Used on panel saws with seperate scoring units for chip-free cuts on both sides of material. With conical type scoring blades, the kerf width changes with depth of penetration. Amana Tool