It is a genuine OEM sourced component which is specially produced for use with DeWALT and Black and Decker power tools. This petroleum based grease is used to lubricate the system allowing for easy low friction movement while protecting parts from the usual wear. Please note this high-quality item is sold individually.
This is an authentic OEM part. The metal ball from DeWALT is used in rotary hammer drills. It is designed to hold the drill bit in place, and fits inside the spindle. A screwdriver may be needed to replace the part. Please refer to the owner's manual and the diagram of your specific model for proper installation. This item is individually priced.