Variable speed dial sets maximum speed and accelerator Trigger Control operating speed. Constant Response circuitry maintains desired speed for consistent performance and precision. Aluminum gearbox with insulated cover. Tool-less blade-change system for fast insertion, and blade ejection lever eliminates need to touch hot blade. Precision-machined plunging system and low-vibration design for enhanced accuracy and extremely smooth operation. Large, sturdy die-cast foot with steel insert and on-board bevel wrench. Exclusive multi-directional blade clamp provides superior grip of T-shank blades (does not accept U-Shank blades). Four orbital-action settings offer different blade strokes for smooth to aggressive cuts. Adjustable dust blower keeps cutting line clear. Ergonomic top handle with soft-grip areas for solid, comfortable grip. Ambidextrous lock-on button for steady long cuts and user comfort and control. Kit includes no-mar overshoe, anti-splinter insert, blade, case.