
7 
Speed change 
Fig.6 
To change the speed, first switch off the tool and then 
slide the speed change lever to the "2" side for high 
speed or, "1" side for low speed. Be sure that the speed 
change lever is set to the correct position before 
operation. Use the right speed for your job. 
 
CAUTION: 
• 
Always set the speed change lever fully to the 
correct position. If you operate the tool with the 
speed change lever positioned halfway between the 
"1" side and , "2" side, the tool may be damaged. 
• Do not use the speed change lever while the tool is 
running. The tool may be damaged. 
Selecting action mode 
Fig.7 
This tool has an action mode change lever. For drilling, 
slide the action mode change lever to the left ( symbol). 
For screwing, slide the action mode change lever to the 
right ( symbol). 
 
NOTE: 
• When changing the position from " " to " ", it 
may be a little difficult to slide the mode change 
lever. At this time, switch on and run the tool for a 
second at the " " position, then stop the tool and 
slide to your desired position. 
CAUTION: 
• Always slide the action mode change lever all the 
way to your desired mode position. If you operate 
the tool with the lever positioned halfway between 
the mode symbols, the tool may be damaged. 
• Do not use the action mode change lever while the 
tool is running. The tool may be damaged. 
Adjusting the fastening torque 
Fig.8 
The fastening torque can be adjusted in 16 steps by 
turning the adjusting ring so that its graduations are 
aligned with the pointer on the tool body. 
First, slide the action mode change lever to the position 
of symbol. 
The fastening torque is minimum when the number 1 is 
aligned with the pointer, and maximum when the 
marking is aligned with the pointer. The clutch will slip at 
various torque levels when set at the number 1 to 16. 
Before actual operation, drive a trial screw into your 
material or a piece of duplicate material to determine 
which torque level is required for a particular application. 
 
NOTE: 
• 
The adjusting ring does not lock when the pointer is 
positioned only halfway between the graduations. 
 
ASSEMBLY 
 
CAUTION: 
• Always be sure that the tool is switched off and the 
battery cartridge is removed before carrying out 
any work on the tool. 
Installing side grip (auxiliary handle) 
Fig.9 
Always use the side grip to ensure operating safety. 
Insert the side grip so that the protrusions on the grip 
base and steel band fit in between the grooves on the 
tool barrel. Then tighten the grip by turning clockwise. 
Installing or removing driver bit or drill bit 
Fig.10 
Turn the sleeve counterclockwise to open the chuck 
jaws. Place the bit in the chuck as far as it will go. Turn 
the sleeve clockwise to tighten the chuck. To remove the 
bit, turn the sleeve counterclockwise. 
Installing bit holder 
Fig.11 
Fit the bit holder into the protrusion at the tool foot on 
eithher right or left side and secure it with a screw. 
When not using the driver bit, keep it in the bit holders. 
Bits 45 mm long can be kept there. 
Hook 
Fig.12 
The hook is convenient for temporarily hanging the tool. 
This can be installed on either side of the tool. 
To install the hook, insert it into a groove in the tool 
housing on either side and then secure it with a screw. 
To remove, loosen the screw and then take it out. 
OPERATION 
Screwdriving operation 
Fig.13 
First, slide the action mode change lever so that it points 
to the marking. Adjust the adjusting ring to the proper 
torque level for your work. Then proceed as follows. 
Place the point of the driver bit in the screw head and 
apply pressure to the tool. Start the tool slowly and then 
increase the speed gradually. Release the switch trigger 
as soon as the clutch cuts in. 
 
NOTE: 
• Make sure that the driver bit is inserted straight in 
the screw head, or the screw and/or bit may be 
damaged. 
• When driving wood screws, predrill pilot holes to 
make driving easier and to prevent splitting of the 
workpiece. See the chart.