The SKIL 18 Pc. Scroll Saw Blade Set is an ideal set of blades with various TPI and widths for general purpose cutting of wood and plastics. The scroll saw blades are precision-sharpened to for easy cutting of intricate shapes and constructed from premium-grade steel for longer blade life. The scroll saw blade set includes both pinned-end and plain-end blades for use with most scroll saws. The set includes (6) 5-inch 10 TPI scroll saw blades, (6) 5-inch 15 TPI scroll saw blades, and (6) 5-inch 18 TPI scroll saw blades.