Specifications

18
Feed slowly to 2 – 3 mm deep.
Feed slowly to
2∼3mm deep
Fig. 29
(8-2) Final stage of drilling
CAUTION
When drilling a hole in an angle, channel or
H-section irons, etc., cutter may be damaged when it
comes to the slanted part of the work piece on the
final cutting stage. Feed slowly in its start and finish
cutting. (Fig. 30)
R
Slanted surface
Fig. 30
(9) Finish drilling the hole
WARNING
●
Pay attention to the ejection of slug when
finishing the drilling. Never touch slug since the
slug is in high temperature and is sharp.
●
Make sure that nobody is underneath the work
area when working in high places
The machine main body may fall. Also, slug may
eject out after drilling. Check that nobody is close to
the work area taking dropping of slug into
consideration.
Immediately turn the magnet switch off when drilling
is completed. Leaving the machine on for an extend
period of time leaves electricity flowing in the magnet
in which it will shorten the service life of the magnet
and the magnetic force will be lost by electric
discharge of the battery pack.
(10) Removing slug (Fig. 31)
Do not start drilling the next hole with slug remaining
on the drill.
At the end of drilling operation, the pilot pin will be
pushed by a spring automatically and slug will be
ejected. In a case where slug is left in the drill, remove
the slug by tapping the collar of the slug with a needle
stick, etc. since drilling operation cannot be continued
when slug is unremoved.
Slug
Collar
Needle Stick
Pilot Pin
Slug
Cutter
Fig. 31
7-3. Drilling Oblong Hole
CAUTION
Always drill slowly.
Drill round holes in the order of
①
,
②
,
③
to get
an oblong hole. For the steps
②
and
③
, take
care so that the cutter may not be fed into the
work piece with so much force.
File away any remaining excesses. See Fig. 32.
Spacing of round holes should be so arranged
that the Pilot Pin will always hit the material yet
to be machined.
1
23
File away any remaining excesses.
Fig. 32
7-4 Drilling H-steel, etc. (Fig. 33)
Remove the blade stay when drilling H-steel, etc.
The lock screw may interfere depending on the size of
the steel material. Remove the lock screw and use the
supplied hexagon socket lock screw 8 x 28 to fix the
machine.
Attach the blade stay and lock screw back when the
work is completed.
H-Steel
Lock Screw
Blade stay
Fig. 33