B&D MTOS4-XJ OSC Tool HeadThe Black & Decker MTOS4 Multievo Multi-Tool Oscillating Attachment is ideal for a multitude of finishing tasks, including cutting, sanding, removal and scraping. It is fitted with the patented Superlok tool free accessory change which is easier than the competition and provides faster job completion.No-load speed: 0 – 24,000 rev/minOscillating speed: 0-16300 bpmQuick-release system: Yes