Overview Reviews Product Description Bright finish Straight shank For drilling brick, stone, cement, concrete Clarkson Osborn Catalog Product Videos Custom Field Diameter 1/4" Flute length 2-3/8" Overall length 3-15/16" Package quantity/sold as each 10 Product Reviews Write a Review Write a Review × Clarkson-Osborn 1/4" Carbide Tipped Masonry Drill Bit DR52016 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *