Viking Drill and Tool 22040 Type 284-UB Magnum Super Premium 4 Flute Hole Hog Core Drill Bit, 1/2"

Premium Hole Hog 4-Flute Core 3-Flats on Shank Designed for enlarging holes Precision ground flutes, body, clearance and drill diameter for ultimate accuracy and performance Oxide - Gold finish, 3-Flats on Shank 4-flute design eliminates catching & hogging-in