Tough and long lasting tungsten carbide never needs resharpening. Fits all popular makes of power tools. Replaces conventional specialist blades. Resistant to heat and abrasion. Cuts on both up and down stroke. Saws through: Brick, cast metals, ceramic tile, composites, cement backerboard, fiberglass, flagstone/slate, hardwood laminates, marble, plastic plywood, PVC, and reinforced cement. 3/4" width. Medium grit. 1 per card.