GB KOR-520, KOR-14 User Manual
IMPORTANT: RECEIVING INSTRUCTIONS: Visually inspect
all components for shipping damage. If any shipping damage is
found, notify carrier at once.
Shipping damage is NOT covered by warranty. The carrier is
responsible for all repair or replacement costs resulting from
damage in shipment.
Instruction
Sheet
KOR-520, KOR-14
Knockout
Hand Ratchet
IMPORTANT—USER SAFETY AND PROTECTION: In setting up systems to fit your operations, care must be taken to select the
proper components and design to insure appropriate integration with your operations and existing equipment and that all safety
measures have been taken to avoid the risk of personal injury and property damage from your application or system.
GB ELECTRICAL CANNOT BE RESPONSIBLE FOR DAMAGE OR INJURY CAUSED BY UNSAFE USE, MAINTENANCE OR
APPLICATION OF ITS PRODUCTS. Please contact GB ELECTRICAL for guidance when you are in doubt as to the proper safe-
ty precautions to be taken in designing and setting up your particular application. To protect your warranty use only GB/Enerpac
hydraulic oil.
TO PREVENT INJURY, KEEP HANDS AWAY FROM
PUNCHES, DIES AND KNOCKOUT CUTTING
TOOLS.
TO AVOID EQUIPMENT DAMAGE AND PERSONAL
INJURY, DO NOT USE THE KNOCKOUT CUTTING
TOOL ON GLASS, PLASTIC OR WOOD. THESE
MATERIALS COULD SHATTER AND PRODUCT
SPINTERS WHICH COULD CAUSE INJURIES.
• KEEP THREADS CLEAN AND WELL
OILED!
Properly maintained tools are safer to use,
and they work better.
Model KOR-520 and KOR-14 are designed for
use on 10 gauge mild steel. Also for stainless
steel up to 12 gauge.
• ENGAGE THREADS FULLY!
Adapter screw should be firmly seated in
driver screw before beginning the punching
operation. Die and punch should be firmly
seated against the wall of the box before
beginning the punching operation.
STEP 1:
Mark correct center position for hole as shown
in figure 1. (If you are working within close tolerances, mark center position with cross as
indicated at right. These cross lines can be
easily lined up with four markings on outer
surface of die).Then drill 1/8” pilot hole.
Enlarge hole with 7/16” drill so that pull stud
can pass easily though metal. (When prepunched knockout plugs are located in desired
position, this step becomes unnecessary).
STEP 2:
Thread the proper adapter screw into the driver head as shown in Fig. 2. (Caution: Adapter
screw thread is a left hand thread). To identify
the proper adapter screw refer to Fig.3 and
the associated chart on page four. Adapter
screw should be secured to a firm finger tightness.
FIG. 1
FIG. 3
FIG. 2
FIG. 4
STEP 3:
Slide proper size die (see chart on page 4)
over adapter screw and insert adapter screw
in predrilled hole as shown in Fig. 4.
KOR-14
Ratchet Knockout
Driver with Adaptor
Screws
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