This CSS21 21" Scroll Saw features variable-speed blade control from 550 to 1600 strokes per minute with a simple turn of a knob, 533mm/21" extra-large cutting capacity and 50mm thickness, precision die-casting aluminum construction, large steel worktable tilts up to 45° left and 30° right for angle cutting, safety switch, built-in flexible dust blower, low noise and vibration, which are very necessary in a Scroll Saw. What’s more, blade changes are totally tool-free and dual side panels flip open for easy-access tool-free blade changes. The upper arm easily lifts out of the way and locks in place, taking the hassle out of making inside cuts. Comes with one 5" x15TPI pinless blade and one 5"x18TPI pinless blade as standard.