Roof mining drill bit

A rotary drilling apparatus, comprising;

• the drill bit comprising a bit body intermediate a shank and a working surface;
• the working surface comprising outer cutting elements with a carbide substrate bonded to a diamond working end with a pointed geometry, and the diamond working end comprising a 0.075 to 0.110 inch apex radius;
• the outer cutting elements are pointed in opposing directions relative to another;
• the outer cutting elements have an axis that forms an angle of 90 to 180 degrees with the axis of the bit body;
• a central cutting element is positioned intermediate the opposing outer cutting elements and substantially coaxial with the bit body, the central cutting element also comprises the diamond working end comprising a 0.075 to 0.110 inch apex radius;
• the central cutting element is configured to stabilize the drill bit as the outer cutting elements rotate about the central axis of the bit body;
• wherein at an interface between the diamond and carbide substrate, the substrate comprises a tapered surface starting from a cylindrical rim of the substrate and ending at an elevated central region formed in the substrate.