BUILDING MATERIALS jigsaw blades

Blades for the site materials that destroy an ordinary jigsaw blade — fibre cement, plasterboard, insulation board, aerated block. These work differently from a toothed blade. The carbide-grit blade has no teeth at all: it abrades its way through, which is the only approach that survives fibre cement. The carbide-toothed blade takes on hard mineral board, and the long coarse blade cuts soft insulation without packing solid. Slow, and worth it — a wood blade in fibre cement is finished in a single cut.