It is suitable for drilling holes in mortar, blocks, bricks, ALC, gypsum board, etc., and for inserting plug anchors and drilling pilot holes for plugless screws. No hammer drill needed. You can drill holes with a rechargeable impact. Asymmetric special carbide tip shape. Cutting speed is more than four times faster than that of general shapes. Made of chrome molybdenum steel that can withstand high loads. The cutting edge and hexagonal shaft are machined as one piece. O-rings are color coded by size. It fits smoothly into the anvil and does not get stuck in the ball groove....
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