Concrete Drill Bit lengthening 1pcs 3/4" X 12"-10" Cross-Type Double Thread Carbide Material Suitable for Concrete, Brick, Cement Walls, Stone, Extra Long Hammer Drill Bits for Concrete 3/4" 12" healthDE_Nov2023 Use genuine OEM parts for

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Concrete Drill Bit lengthening 1pcs 3/4" X 12"-10" Cross-Type Double Thread Carbide Material Suitable for Concrete, Brick, Cement Walls, Stone, Extra Long Hammer Drill Bits for Concrete 3/4" 12" healthDE_Nov2023 Use genuine OEM parts forConcrete Drill Bit lengthening 1pcs 3 4" X 12" 10" Cross Type Double Thread Carbide Material Suitable for Concrete, Brick, Cement Walls, Stone, Extra Long Hammer Drill Bits for Concrete Product Features SIZE INTRODUCTION: The total length is 12 inches, the actual effective length is 10 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.