MASONARY DRILL TIP WITH STRONG AND CHAMFERED CUTTING EDGES

摘要

A cutting tip to be carried by a drill bit for rotation in a first direction and useful in drilling holes in stone and masonry materials wherein the tip is planar and has a point defined by first and second surfaces intersecting at a point and third and fourth flank edges extending generally parallel to the longitudinal axis and where the leading edge of at least one of the flank edges. determined by the direction of rotation, is chamfered.