Concrete Drill Bit 3pcs 1/4" X 10"-8" Cross-Type Double Thread Carbide Material Suitable for Concrete, Brick, Cement Walls, Stone

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About This SIZE INTRODUCTION:The total length is 10 inches, the actual effective length is 8 inches. Alloy Cutter Head: The harder cross cutter is easier and more efficient for dri lling 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 Show more