Big Horn 19397 4-1/2" Long Handle Diamond Impregnated Grinding Wheel Dresser 1-3/4" x 1/2" Diamond Grinding Wheel Dresser | Restores and prolongs the life of grinding wheels Re-shapes worn Wheels to give true grinding surface | Heavy duty diamond coated head with knurled handle for secure grip Material: Diamond coated + Metal Dressing Surface: 1-3/4-inch by 1/2-inch wide long Handle Length: 4-1/2-inch