RotoZip RZ18V-1100 Spiral Saw System with Cordless Tool, XBIT & Collet Accessory Pack (Battery and Charger included) 30,000 RPM-Power and speed of a corded tool Adjustable Foot / Base-Can be adjusted for cuts up to 1 deep 5/32 Collet System-Allows for the use of the new RotoZip XBITS BOSCH Blue Core Battery-18V / 2.4AHr Battery guarantees longer tool life and allows for compatibility with other BOSCH tools Bit / Wrench Storage-On tool storage for bits, collets, and wrench