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iNSTALLING DRILL BITS (F|G, Q)
1. Open the chuck iaws Py hand, turning the barre_ of
the chuck (1) clockwise,
2. _nsert a dr}_ bit into the chuck far enough to obtain
maximum gripping of the chuck jaws (2),
3. Make sure that the drill bit is centered correctly
between the chuck jaws before final tightening of the
chuck.
4, Turning the chuck barrel counterclockwise, hand
t_ghten the drill chuck sufficiently so the ddll bit does
Depth sca_e method (FIG. S}
NOTE: For this method with the spindle in the up position,
the drill bit tip (2) slightly touches the top d the worKpiece (1).
1 W_TH THE SW_TCH "OFF" turn the feed handte untit
the pointer (7} points to the desired depth on the
depth _ate (4) Hold the feed handles in that position,
2. Spin the {ower nul (3} down to contact the depth stoo
_ug(6) on the head,
3. Spin the upper stop nut (5) against the lower stop nut
The downward progress of the chuck and drill bit will
now stoo after traveling _:hedistance selected on the
depth scale
\ \
DRILLING TO A SPECIFIC DEPTH
DdlIing a blind hole (not all the way through me worKpiece}
to a given depth can be done two ways.
Workp_ece method (RG. R. S)
1. Mark the depth of the hole on the side of the
2. WITH THE SWITCH "OFF', bring the drill bit f2t down
until the tip is even with the mark.
3. Hold the feed handle at this position,
4. Spin the lower nut (3) down to contact the depth Stop
lug (6) on the head,
5. Spin the upper nut (5) down and tighten against the
_ower nut. (3)
6. The drill bit will know stop after traveling the distance
marked on the workpiece.
F_g° R
1
2
t
DrHl_eg a hoJe
Using a center ounch or a sharp nail, dent the workp_er,e
where you want the hote Before turning me switch on
bring the dril_ bit down _o _ne workpiece, _ining it uP with
the ho_e _ocation. Turn the switch on and puH down on
the feed handles with on{} enough effort to allow the driP!
to cut,
FEEDING "TOO SLOWLY might cause the drilt bit _o _urn.
FEEDING TOO RAPIDEr/might stop the mo_er_cause the
belt or d(ill to slip tear the workp_ece _oose, or break the
drill bit. _hen dri{ ing metal, it will be necessary to
ubdcate the tip of the drill bit with oil to 9revem it from
13
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