Manufactured with premium grade solid carbide tips for added strength and durability. Suitable for drilling steel plate, stainless steel, A.C. sheeting, aluminium, FRP, PVC, fiberglass & concrete coated pipes. There are two sets of three different edged cutting teeth. One tooth slanted outward, one inward and one that peaks in the center. This arrangement balances the cutting effort for smooth boring, better control and less chance of excess drag. With a one piecestructure, there is no play or flexing between the shank and cutting edge, resulting in sharp, crisp, smooth cutting.