【Improved Design:】Two-Flute Design for smoother cutting,no need to use center punch.
【Set Includes:】Metal drill bits for steel have 4-12mm/4-20mm/4-32mm,Shank:1/4" Quick Change Hex Shank.
【Wide Application:】Automotive sheet metal, repair and renovation, bridge frame, home appliance decoration.
【Widely Used:】Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal.
【After Sales Warranty:】Our Worry-Free 12 Months Warranty and Toll-Free Tech Support, and friendly customer service.