MILWAUKEE TOOL 48-20-7341 5/16 in. x 4 in. x 6 in. 4-Cutter MX4 SDS-Plus Rotary
$7.95
SDS-Plus Rotary Hammer Drill Bit, 5/16 in, Carbide, 6 in Overall Length, Maximum Drilling Depth 4 in, Shank Diameter 13/32 in, Shank Hex Size Not Applicable, Bright (Uncoated)