Profile: Hafner & Son, Inc. is a diamond drilling and diamond sawing contractor. We specialize in servicing and repairing electrical tools. We can repair all makes of electrical power tools from both industrial and construction lines. We maintain a complete line of industrial-rated electric tools, as well as a complete line of carbide bits which will fit any roto-hammer or drill on the market. Our services include flat sawing, core drilling, wall sawing and wire sawing services.