Concrete contractors who are required to perform concrete core strength tests have a few options when it comes to core drilling. They can hire a testing lab or concrete sawing and drilling company to ...

The 34-lb. Model DBE 160 single-speed, 700-rpm core drill rig has an 18-amp motor, enabling it to drill holes up to 6-in. diameter in concrete, reinforced concrete, brick, block and stone. Drill stand ...

Above: A core section of ice from more than 500 feet below the surface of Antarctica sees the light of day for the first time in over 3000 years. The ice drilling rig is seen at left, in operation at ...