DeWalt DW5417B25 DeWalt 1/4″ x 4″ x 6″ Rock Carbide SDS+ Hammer Bit (Bulk 25) Review Posted on March 1, 2019 by ControlSprite This fits your . Make sure this fits by entering your model number. ROCK CARBIDE tip maximizes carbide surface contact for longer bit life. Four flute design cleans debris out for fast, efficient drilling. › See more product details