Hitachi CL 10SA Technical Data And Service Manual page 8

(6) Minimum cutting length
As illustrated in Fig. 10, it is sometimes necessary to cut studs 30 mm or less from the ceiling surface when
installing fluorescent lamps in electrical installation work. The Model CL 10SA permits cutting protruding studs to
a minimum length of 24 mm from the ceiling surface.
In addition, when installing ducts in air-conditioning equipment installation work, it may be necessary to enclose
the ducts with insulation (lagging) after installation to prevent the formation of dew. In such a case, studs must be
cut as short as possible so that they do not protrude from L-shaped angles, in order to prevent damage of the
lagging. As illustrated, the Model CL 10SA permits cutting of studs within an L-shaped angle measuring 25 mm x
25 mm x 3 mm (t).
Ceiling
Fluorescent lamp fixture
(7) Equipped with stepless speed control and brake for easy positioning
Before cutting a stud, when setting the open cutter to the desired cutting position, setting can be easily
accomplished by turning on the switch at "Low speed". Also, as the Model CL 10SA is equipped with a brake that
stops the cutter movement in an instant, the cutting operation can be stopped instantly at any desired condition
without worry of unwanted inertial movement after the switch is turned off. Combined use of these two features
provides excellent operability. When cutting a fastened stud (for example, hanged stud in a high place), the cutter
can be closed at "Low speed" and, after ensuring the cutter properly engages the threads of the stud, the cutting
operation can be performed at "full speed". This prevents possible abnormal bite, and ensures clean, accurate
cutting.
(8) Convenient hook facilitates operation in high places
When performing equipment installation work in high places, cutting of
hanging studs is often only one of several jobs that must be
performed. Accordingly, it is sometimes necessary to put the stud
cutter aside and use both hands for some other job. In such cases,
the hook is very useful for hanging the stud cutter from a nearby
conduit, steel grounding material, cable rack, or similar support when
not in use.
Stud
30 mm or less
Fig. 10 Minimum cutting length
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L-shaped angle
Stud
Fig. 11 Convenient hook facilitates
operation in high places
Hook
Latch