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Depth gauge (optional accessory)
The depth gauge is convenient for drilling holes of uniform depth. Loosen the
side grip and insert the depth gauge into the hole in the side grip. Adjust the
depth gauge to the desired depth and tighten the side grip.
NOTE
:
The depth gauge cannot be used at the position where the depth gauge
strikes against the tool body.
Holding tool
When drilling a large hole with a hole saw, etc., the side grip (auxilary
handle) should be used as a brace to maintain safe control of the tool.
Grasp the rear handle and the front grip firmly when starting or stopping the
tool, since there is an initial and final reaction. When drilling action is forward
(clockwise), The tool should be braced to prevent a counterclockwise
reaction if the bit should bind. When reversing, brace the tool to prevent a
clockwise reaction. If the bit must be removed from a partially drilled hole, be
sure the tool is properly braced before reversing.
Carbon brush light device and Replacing carbon brushes
When the machine working in the normal condition, the carbon brush light
shows „green“.
Remove and check the carbon brushes regularly, when the carbon brush light
shows „red“, please change the carbon brushes timely. Keep the carbon
brushes clean and free to slip in the holders. Both carbon brushes should be
replaced at the same time. Use only identical carbon brushes.
Drilling operation
Drilling in wood
When drilling in wood, the best results are obtained with wood drill equipped with a guide screw. The
guide screw makes drilling easier by pulling the bit into the workpiece.
Drilling in metal
To prevent the bit from slipping when starting a hole, make are indentation with a center-punch and
hammer at the point to be drilled. Place the oint of the bit in indentation and start drilling.
MAINTENANCE
Use a cutting lubricant when drilling metals. The Exceptions are iron and brass which should bedrilled
dry.
CAUTION:
●
Pressing excvessively on the tool will not speed up the drilling. In fact, this excessive pressure will
only serve to damage the tip of your bit, decrease to tool performance and shorten the service life of
the tool.
