Ergonomic and balanced power adapter snaps into the ETSC, DTSC, and RTSC sanders to provide uninterrupted power from AC power sources (110V AC) using a Plug-It cable. Provides a power source alternative for continuous sanding performance. Compatible with 18 AWG Plug-It cords (one 4m cord included) which are standard to Festool Plug-It equipped sanders. Not suitable for all other cordless machines