Shadow Light accessory for the Bosch GCM12SD Miter Saw. The easiest and best way to turn your saw into a precision cutting machine Mounting Bracket for OLIGHT Oclip Rechargeable EDC Flashlight (purchased separately) which mounts above the blade that cast a shadow onto the workpiece, showing the exact cut that the blade will make. There are no confusing parts or adjustments. The shadow line provides a brighter, more accurate line on both sides of the saw blade kerf and improves safety by showing you where the blade will cut.