Tool-less" depth adjustment for more precise flush and countersink nailingNail lock-out mechanism protects tool and work surface from dry-firesBuilt-in air duster provides convenient air flow to clear work surfaceefficient motor design offers leading power performanceTool-less" easy to clear nose for fast and easy nail extraction Two-mode selector switch for control over nailing operationMulti-directional exhaust port directs exhaust air away from operator Includes 2 removable no-mar tips; convenient on tool storage.