DOT Diamond Core Drilling, Inc. Services About Us Contact Us DOT Diamond Core Drilling Concrete sawing and drilling contractor providing professional services in core drilling, flat sawing, wire and diamond chain sawing, highway grinding, grooving & more. GET A FREE ESTIMATE Our Services Diamond Core Drilling Core drilling techniques are used when precise, circular cuts are needed. Holes of almost any diameter up to 60’’ are easily drilled to make openings for plumbing, electrical and HVAC installations. Wall Sawing Wall or track sawing is typically specified to cut precise dimensional door, vent and window openings. It is also an excellent choice for creating precise openings in any concrete structure. Heavy Highway Sawing To ensure that the job is done on schedule, Dot Diamond can provide high horsepower, diesel saws, guaranteed to yield speed and precise cutting. See All Services Here Contact Us Today! DOT Drilling 780 Sugar Lane Elyria, Ohio 44035 Call Toll Free: 1-800-322-6877 Phone: 440-322-6466 Fax: 440-365-5801 Services All Services Angle Sawing Core Drilling Curb Sawing Hand / Chain Sawing Road Sawing Robotic Demolition Scanning Slab Vermeer Sawing Wall Sawing Wire Sawing Popular Links Home About Us Estimate Services Contact Us Get a Free Estimate! Website by duo.