Overview Reviews Product Description Fits size T-20 screws with tamperproof heads. Compatible with our Hinged Drain Grates Product Videos Custom Field Product Reviews Write a Review Write a Review × Tamperproof Screwdriver for Hinged Drain Grates Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *