EDMA DimplerThe EDMA Dimpler is a drywall and particle board screw retainer that adapts to any driller or impact driver. It features a built in clutch system that will set the screw at the right depth to guarantee a flush finish. Created with a very strong magnet to hold the screw in place, the EDMA Dimpler can transform any drill in to an automated professional screw gun and it even includes a reverse unscrew function. Ideal for Screwing GIB board into place