6-Position Rotatable Handle (Patent pending) Allows User To Get Between Joists, Studs And Other Confined Spaces Orbital Action Selector (Patent pending) For Aggressive Wood Cutting 0-2,700 SPM 3/4" Blade Stroke 18 Volt, 2.4 Amp-Hr Battery One-Hour Universal Battery Charger Reversible Battery (Patent pending) Counter Balanced Mechanism Durable Slider-Crank Reciprocating Mechanism Heavy-Duty Milwaukee Built Motor Double-Walled Rotating-Handle Detents Metal Cam Lock 25 Amp Marquardt Variable Speed Switch Heavy-Duty, Steel, Keyless Quik-Lok Blade Clamp (Patented) Soft-Grip Handle Pad For Comfort And Secure Gripping All Metal Gearcase 0 Rugged, Tool-Free Adjustable Shoe (Patent pending) Orbit Adjustment Lever Replaceable Brushes