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1. Drill chuck assembly
Chipping/Scaling/Demolition
Set the action mode changing knob to the 
symbol.
Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool will not bounce around, uncontrolled. Pressing very hard on the tool will not increase the efficiency.
Drilling in wood or metal
Use the optional drill chuck assembly. When installing it, refer to “Installing or removing the bit” described on the previous page.
Set the action mode changing knob to “rotation only”.
You can drill up to 13 mm (1/2”) diameter in metal and up to 38 mm (1 - 1/2”) diameter in wood. (Note: When using a flat boring bit.)
MAINTENANCE
CAUTION:
•Never use “rotation with hammering” when the drill chuck assembly is installed on the tool. The drill chuck assembly may be damaged. Also, the drill chuck will come off when reversing the tool.
•Pressing excessively 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 the tool performance and shorten the service life of the tool.
•There is a tremendous twisting force exerted on the tool/ bit at the time of hole breakthrough. Hold the tool firmly and exert care when the bit begins to break through the workpiece.
•A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly.
•Always secure small workpieces in a vise or similar hold- down device.
CAUTION:
•Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.
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