Triumph Twist Drill Co. 099856 T17HD Size Ranger 1/16-Inch-1/2-Inch by 64ths

T17HD drill set 1/16-Inch - 1/2-Inch by 64ths drills, Thunderbit Premium Grade Steel with Heavy-duty construction Drill Set High Speed Steel, Black and Bronze Oxide coated, 135 -Degree split point.