Festool 499478 S 145/4 FSG Jigsaw Blades, 5-Pack Ideal for softwood, hardwood, melamine, veneered plywood and chipboard Cross-set teeth for fast cuts, extra thick for perpendicular cuts, saving time on rework HCS tool steel quality, 5 3/4 inches long, 6 TPI, for perpendicular cuts in materials up to 4 3/4 inches Universal T-shank design fits most professional jigsaws