Wensilon 5pcs 1/2" X 6"-4" Cross-Type Double Thread Carbide Drill Bits for Concrete, Brick, Stone, Hammer Drill

Features

• SIZE INTRODUCTION:The total length is 6 inches, the actual effective length is 4 inches.
• Alloy Cutter Head: The harder cross cutter is easier and more efficient for drilling work.
• Material: High-strength alloy steel is made by Wensilon, very hard.
• Ripple design: double line of drill bit design, drilling and punching is faster, stone powder is easier to peel off from the wall.
• Compatible with most brands of impact drills on the market