HYKE Extension Concrete Drill Bit Lengthening 1pcs 7/8" 39" -Type Double Thread Carbide Material Suitable For Concrete, Brick, Cement Walls, Stone,

SIZE DESCRIPTION: The overall length is 39 inches. Alloy Cutter: The harder cutter makes work easier and more efficient. Material: -strength alloy steel is manufactured through , making it very hard. Ripple design: double line drill bit configuration, enabling faster , and stone powder is more easily removed from the hole. with most brands of impact drills available the market