If you know ahead of time that you will need them, then they can be ordered from
McMaster, or MP Systems stocks and can ship a kit with all the necessary components.
HIGH
PRESSURE
PURGE CDR
PIPE SIZE
HOLE SAW
McMaster
MP Systems
X
X
X
1 1/4"
1 3/4"
3789A29
AK HOLE SAW
KIT
X
1 1/2"
2"
3789A33
AK HOLE SAW
KIT
X
2"
2 1/2"
3789A39
AK HOLE SAW
KIT
X
2 1/2"
3"
3789A45
AK HOLE SAW
KIT
X
X
X
ALL
ARBOR
3789A61
AK HOLE SAW
KIT
X
X
X
ALL
PIN 3/16 X
2
97395A618
AK HOLE SAW
KIT
Cutting a hole in sheet metal seems like a common task,
however doing it right will not only be safer, but can also
improve tool life, cut speed, and cut quality (clean vs. jagged
edges).
1. Start by measuring twice. Use the green pipe clamp for
the dip tube you are installing to help layout where the
hole needs to be drilled, as well as where the fasteners
will need to go for the clamp. Use a center punch to
locate the holes and prevent drill drift.
2. Use the appropriate size drill to make a pilot hole in the
center of the cut. *NOTE* Only the drill should be used
at this point, do not use the drill bit while attached to
the hole saw. When the drill breaks through, you can
damage the hole saw by “punching” the sheet metal
and breaking or bending the teeth.
3. Install the blank pin in the arbor, then thread on the
hole saw. (In a pinch, an old drill bit installed
backwards can work as a guide too) Be sure to set
your drill to low speed and change from drilling to
torque mode.
4. Apply cutting fluid and begin cutting, feathering the
trigger to maintain a moderate speed.
5. Be sure to continuously add cutting fluid to keep the
hole saw cool and lubricate the cut.
