Filter
Top Products
ADJUSTMENTS:
The
following
adjustments
may be
necessary
to
keep
your
drill
press
at its
most
efficient
operation.
If
the
automatic
feed
return
fails
to
return
the
chuck
to the top of the
stroke
or if the
return action
becomes
sluggish,
the
tension
may be
adjusted
as
follows;
Lock
the
chuck
at the top of its
stroke
using
the
quill
lock handle.
Hold
the
feed return
adjusting knob
firmly
and
release
the
feed return
adjusting
knob lock screw, Fig.
1.
Turn
the
adjust-
ing
knob counter-clockwise
and
re-tighten
the
lock
screw. Release
the
quill
lock handle
and run the
chuck
down.
If
spring tension
is
still
not
sufficient
repeat
the
above
adjustment
until
it is.
FIGURE
3
To
change
the
locked position
of
table lock handle
or
headstock lock handle (Fig.
1),
remove handle
and
rotate table
lock,
item
67, or
headstock lock,
Item
51,
180°.
Re-insert
and
tighten lock handle.
CAUTION: Headstock
or
table assembly should
be
securely supported when changing locked position
of
handles.
The
Quill Lock Handle, (Fig.
1 ) for
greatest ease
of
operation should point
down
when locked.
To
change
the
position
of the
handle, loosen
the set
screw,
remove handle
from
hex
head screw
and ro-
tate
to
correct position. Replace handle
and
tighten
set
screw.
Belt
tension
adjustment
is
made
by
loosening
the
motor mount lock screws
and
moving
the
motor
mount
away
from
the
tool. Excessive tension short-
ens
bearing
life,
causes excessive belt wear
and
robs
the
motor
of
power. Tension should
be
just
enough
to
prevent slippage
at
normal operating
speeds
and
feeds.
Tighten pulley
set
screws
after
a few
hours
operation.
TYPES
OF
BITS:
A
variety
of
bits
are
available
for use in
your drill
press.
For
metal
drilling
the
standard twist drill will
prove adequate
for the
home
-work
shop.
If
exten-
sive
commercial operations
are to be
performed,
high
speed
steel drills although more expensive,
will
prove
to be the
better tool
as
higher operating speeds
are
possible plus longer
cutting
edge
life.
The
solid center wood
bit has a
single
flute
turn-
ing
around
a
solid center
but
carries
two
spurs.
The fluted bit is an
excellent
all
purpose wood
bit.
It has two flutes
each
terminating
in a
cutting
edge
and
spur.
The
best
bit for
high
quality
machine
drilling
in
wood
is the
spur machine bit.
It is the
stiffest
drill,
tracks nicely
and
produces
an
exceptionally smooth
hole.
For
larger holes,
a
hole
saw is
available
for
either
metal
or
wood. This
bit has a
center drill
for
pilot
and
teeth around
the
outer
rim
similar
to a saw
blade.
Also,
for
large holes
in
wood
an
expansion
bit
may
be
used. When
the
expansion
bit or any
hand
wood
bit is
used
in the
drill
press,
the
screw point
must
have
the
threads removed
from
it so
that
it
will
not
enter
the
wood
too
rapidly.
These
threads
may be filed
off. (See Fig.
3.)
Countersinking
in
wood
may
best
be
accom-
plished
by
using
the
double
lip
style.
It
will
give
the
cleanest
cut and
will
not gum up
under con-
tinuous
operation.
Length
of
Cutting
lips
must
be
equot
Heel
of
Cutting
Lip
FIGURE
4
DRILL
SHARPENING:
When grinding twist
drills,
in
order
to
maintain
the
efficiency
of the
drill,
extreme
care
should
be
exer-
cised.
The
dead
center
of the
point must
be
main-
tained,
that
is, the
cutting lips must
be the
same
length,
Fig.
4.
Also
their angle
in
relation
to the
center
line
of the
drill
must
be
equal.
The
angle
should
be
approximately
60
degrees,
120
degrees
included,
for
metal
and 35
degrees,
70
degrees
in-
cluded,
for
wood.
The
cutting
lip
should
be
relieved
gradually
behind
the
cutting
edge
so
that
the
clear-
ance
at the
heel
is
about
1 2
degrees.
OPERATION:
Chuck
removal;
If
at any
time
you
wish
to
remove
the
chuck merely
loosen
the
chuck holding collar
and
continue
to
turn
it.
This
will
force
the
chuck
from
the
spindle taper.
Do not
attempt
to
drive
or
wedge
the
chuck
off as
you
may
damage
the
spindle
or
bearings.