Package includes：8 Carbon Brush For：For Bosch 1617014126 Brush Set compatible with the following tools: 11316EVS, 11317EVS, 11311EVS, 11223EVS, 11245EVS. These carbon brushes makes sure your motor runs properly, and fixes a motor that operates intermittently. Return refund: If you have any questions, you can refund in full without any problems