GD0800C Makita High Speed Die Grinder fitted with the SJS Super Joint System absorbs shocks caused by accidental wheel lock during operation protecting gear, collet and coupling for longer tool life, the electronic speed control maintains constant speed under load and variable speed control for exact application of speed to work piece and the slim long aluminium gear housing that is great to get in at hard to reach work areas and the slim body design gives comfortable grip and control, a speed control dial allows for setting the optimal speed complete with an exhaust port that can be angled away from operator.