The GWX 9-115 S is a Bosch Professional angle grinder which is suitable for use with X Lock accessories. These accessories (which have an X-shaped bore) can be mounted or swapped out in a matter of seconds, without need for additional tools or removable components that can become lost or misplaced - the accessory is simply pressed onto the X Lock interface to lock it in place, or released by using the switch on top of the gear housing - accessories cannot be mounted incorrectly and an audible click lets you know once everything is securely locked in place and ready to go. The GWX 9-115 S has a variable speed control dial that enables the no load speed to be adjusted between 2,800 and 11,000 RPM, enabling use with a wider variety of accessories and for a greater number of applications. Features and BenefitsSmall angle grinder with 900 watt motor for fast progressTool-free X Lock interface for fast and frustration-free accessory changesVariable speed dial for optimum settings wi