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Make a small indent to mark the desired drilling location using a center punch. Drill a pilot hole with a 1/8” metal drill bit.
Enlarge the hole using a 3/8” metal drill bit.
Drilling the Faucet Hole
Stainless Steel Sink
Tile Countertop
Faucet Installation
Additional Point of Use Connection
The product water faucet may be installed on any flat surface at least 2” in diameter. Check the underside of the location
for interference.
A 3/8” variable speed drill drill is recommended for this procedure.
A spring loaded Relton style drill set is strongly recommended to prevent chipping.
The plastic sleeve supplied on the pilot drill is to be positioned on the drill bit against the drill chuck. This prevents the
chuck from contacting the porcelain after the pilot hole has been completed.
Avoid high motor RPM during the initial cutting of the porcelain as this can cause chipping.
Using a carbide tipped drill bit, drill a pilot hole
completely through the porcelain and the material
underneath.
Place the spring loaded porcelain saw into the
drill chuck. Make sure the pilot guide is inserted
tightly. Insert the pilot guide into the pilot hole.
Push down gently on the drill motor to apply light
pressure to the porcelain surface. Start the drill
motor turning as slowly as possible.
After the initial cut has started, motor speed may
be gradually increased. The cut may require three
to four minutes to complete. Going faster could
result in excessive chipping. This saw is used to
cut the porcelain only.
Be sure a complete ring has been cut through the porcelain to the metal underneath.
Place the finish hole saw into the drill chuck. Make sure the pilot guide is inserted tightly. Insert the pilot guide into the pilot
hole. Begin cut using a slow speed and light pressure until the metal has been penetrated.
Follow the procedures outlined in the Porcelain/EnamelSinks section.
Once the hole has been drilled in the sink, the faucet may be located in the hole. Be sure the faucet body, faucet base,
and the rubber faucet base washer are in place above the sink. Install the star lock washer and nut, then tighten firmly
while aligned faucet in the desired direction.
NOTE: Icemakers typically use 1/4” tubing as the water feed line. Use a reducing union fitting to make this connection.
To connect an additional point of use (icemaker, extra faucet, etc.), place a ‘T’ connector in the 3/8” line between the
faucet and the RO system.
Porcelain/Enamel Sinks
Drilling With Relton Cutter
