While both of these do the same job,
they are often used in different
ways and on different materials.
For example, dry core bits can be
used either dry or with water.
On the other hand, wet core
bits must have water cooling
to operate.
Dry core bits, like the name
suggests, can be used without
water; while wet bits require
water-cooling to operate.
Using dry bits is convenient
and more friendly to DIY users,
but it is often not powerful enough
to match the drilling power of wet
core bits.
A wet core is essentially the
communal bathroom for
several students with lavatories,
water closets, and shower facilities.
We began by identifying the issues
and asking a lot of questions.
Are there others using wet cores?
What's their experience?
How many students should
a wet core serve?
Wet drills will typically drive
the bit through the core faster
than dry drill bits because the
lubrication of the water helps
loosen the material's surface.
Wet core drilling also leaves
behind a cleaner, more stable
hole surface because the water
minimizes the dust produced
during drilling.
Varying with application,
an average electroplated
diamond core drill/bit will
last you 80 to 120 holes.
Whereas a conventional
metal bond (sintered)
diamond drill should last
you about 1,200 holes.
Water used in diamond
drilling and sawing used
for the tools acts as a coolant
and lubricant for the blade and
motor. When water is not used,
tools will overheat and become
unusable, the drill bit weakens
, and the saw blade loses tension
resulting in imprecise cuts.
Water is introduced to
do two different things.
First, since core
drilling in concrete
creates a lot of friction,
the drill bit needs to be cooled.
Second, the water collects all
of the dust and debris getting
thrown around and forms a mixture.
Three coring methods are
practiced: conventional,
wireline, and sidewall.
Conventional coring, which
refers to core taken without
regard to precise orientation
, encompasses arrange of
coring devices and core barrels.
