17
OPERATION
INSTALLING AND REMOVING DRILL BITS
The 30-212VSR Drill Press includes a 3-jaw keyed
chuck for the holding of drill bits with shanks up to 5/8”
diameter (1/32”-5/8” / 0.8 -16mm). To install a drill bit;
1. Disconnect the machine from the power source
and make sure that the switch is in the OFF position.
2. With the chuck key, turn the upper, knurled section
of the chuck to open the three chuck jaws. FIG. 27.
3. Insert the shank of the drill bit into the chuck as far
as it will go, or up to the beginning of the flutes that
are in the drill bit.
4. Make sure that the drill bit is centered in the jaws,
and with the supplied chuck key, insert the key into
one of the chuck barrel’s three holes and surrounding
teeth. Turn the key to tighten the chuck jaws and
secure the drill bit shank in place. Remove the key
and repeat this tightening on the other 2 chuck holes.
5. To remove a drill bit from the chuck, reverse the
chuck tightening operation detailed in step 4 above.
FIG. 27
DO NOT run the drill press to open or
close the chuck when installing or removing a drill bit.
Make sure that the drill bit is secure
in the chuck, and the chuck key has been removed
from the chuck before starting the drill press.
DRILLING SPEEDS
This Drill Press has two variable speed ranges from
150 to 700 and 600 to 2,800 RPM. The correct drilling
speed for your work depends on a variety of factors:
a) the workpiece material & hardness
- wood, composites, plastics or metal
b) the size of hole diameter
c) the depth of the hole
d) the type of drill bit or other cutter needed to make
the desired hole diameter and depth
e) the quality of the bore
We recommend consulting various books, magazine
articles, drill bit and material manufacturers’ informa-
tion for information on the proper operating speeds
and types of drills for the material or hole desired.
- A general rule: The larger the hole and the harder
the material = the slower the RPM speed.
WORKPIECE POSITIONING
Always use clamps or hold-downs
to secure the material onto the drill press table during
drilling. This will prevent the work from being torn from
the operator’s hand should the drill bit gets caught
in the material. Clamping the work to the table is
particularly necessary if the table is tilted on an angle.
Place a scrap board or piece of plywood under your
work to protect the metal table, drill bit, and to provide
a solid base for a clean hole if the drill bit exits the
work.
To prevent work from spinning, if possible, position the
work to rest against the left side of the column. For
shorter pieces, use a clamp or drill press vise secured
to the table.
Feed bits into the material at a constant rate to allow
the bit to work. Too slowly may cause the wood to
burn and ruin the bit. Too fast may put excessive
stress on the motor and cause the bit to break.
NOTE:
See pages 6 and 18 for important safety in-
formation on drilling set-ups, speeds and procedures.
Chuck
Key Holder
Next to
Switch
