Wet or Dry Drilling
Diamond hole saws are also called diamond core drill bits. Laser welded diamond core drill bits can be used in wet and dry drilling, but not all materials to be drilled are suitable for dry drilling. Very hard materials like reinforced concrete normally should be drilled with water, otherwise the excessive heat generated during the drilling process may cause the diamonds on the core bit to become blunt, and then lead to poor drilling performance.
The bond materials and the diamonds used on the laser welded diamond core drill bits usually are specially adjusted to fit the wet and dry drillings respectively. This can make the core bits perform better in drilling speed and/or lifespan.
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Famous quotes containing the words wet, dry and/or drilling:
“Like a wet log, I sang within a flame.
In that last while, eternity’s confine,
I came to love, I came into my own.”
—Theodore Roethke (1908–1963)
“Panting, begging I clutched childlike, clutched to the hot sides of
death.
Now I am dry bones and my face a stony skull staring in yellow
surprise at the sun. . . .”
—Richard Wright (1808–1860)
“Don’t spend your time in drilling soldiers, who may turn out hirelings after all, but give to undrilled peasantry a country to fight for.”
—Henry David Thoreau (1817–1862)