All Core Drilling Equipment includes: Free Ground Freight*
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Where to begin?
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STEP 1: Hole size. Defining the job is essential to selecting the proper
equipment . The equipment you select should be designed to get the job
done.
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To use this 11" x 17" .pdf file, find the hole size you need to drill on the leftmost column.
The minimum, ideal, and maximum recommended RPM speeds are listed next. The
following columns represent the available motors and their RPM settings. Choose from
the recommended motor speeds that correspond to the hole size you are drilling.
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Avoid "over-speed"! Using a motor speed that is faster than the
recommended RPM will result in "glazing" the bit, stopping any
drilling progress. "Under-Speed" motors where the RPM is less
than the minimum will result in slower drilling progress and can
cause the bit to wear quicker. Remember it is better to "under-
speed" than to "over-speed"! - don't under-speed too much.
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STEP 2: Tolerance. Does the hole need to be true? Are you drilling a 2
inch hole for a 2 inch pipe? Then the hole needs to be true, and you should
use a properly anchored rig to ensure the drilled hole is accurate. Otherwise
for smaller holes you might consider a hand held unit.
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STEP 3: Select from these options. Knowing which equipment will
provide the best performance for your hole size is essential for long-term cost
savings.
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