DEWALT DW4705 Adjustable Diamond Blade Guard for the DW402, DW402G, DW818 For use on the DW402 4 1/2-inch Grinder Compatible with 4-inch and 4-1/2-inch grinders Keeps hands and fingers away from the blade for ultra-safe grinding Made from only the finest materials for extended lifespan and durability Comes with a 1-year warranty, 1-year free service contract, and 30-day money back guarantee from DEWALT