DEWALT 3/8 in. Steel Brad Point Drill Bit DW1710 - The Home Depot
3/8" cobalt drill bit for hard metal - 3/8 drill bit
COUNTERSINK DRILL BIT SET FOR METAL - 5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4" - 5 FLUTES w/ 82 DEGREE -