The XVJ01Z features an ergonomically designed barrel grip, which is closer to the work surface for more precise cut. The brushless motor is engineered for efficiency, with a variable speed control dial (800-3,500 SPM) that enables users to match the speed to the application. Added features include 3 orbital settings plus straight cutting for faster and more accurate cuts in a variety of materials. In addition, the efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge than similar non-brushless tools. Electronic controls efficiently use battery energy to match the changing demands of the application for increased power and speed when needed. And since there are no carbon brushes, the BL Brushless motor runs cooler and more efficiently for longer life. Tool Only.