[. . . ] A battery short can cause a large current flow, overheating, possible burns and even a breakdown. Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50°C (122°F). Be aware that this tool is always in an operating condition, because it does not have to be plugged into an electrical outlet. Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. [. . . ] 4) CAUTION: Before inserting the battery cartridge into the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released. ⷠUse the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool. ⷠWhen not operating the tool, always set the reversing switch lever to the neutral position. this tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the A side for clockwise rotation or from the B side for counterclockwise rotation. When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled. 6) The tool stops automatically after the battery capacity reaches under 20% to prevent the lack of fastening torque. Auto-stop setting for number of impacts This tool has a convenient auto-stop mechanism that allows you to preset the desired number of impacts in terms of the application. The tool then stops automatically after reaching the preset number of impacts. (The indicating lamp on the back of the tool will flash about 10 times, then the lamp will keep lighting up lit. ) Example: When the preset number is 12, hit the tool housing two times. ) CAUTION: When you change the presetting, do the same procedure as above 1 ­ 8. To install the bit, pull the sleeve in the direction of the arrow and insert the bit into the sleeve as far as it will go. To remove the bit, pull the sleeve in the direction of the arrow and pull the bit out firmly. NOTE: If the bit is not inserted deep enough into the sleeve, the sleeve will not return to its original position and the bit will not be secured. In this case, try re-inserting the bit according to the instructions above. Relation between presetting number and action Presetting number 00 Clockwise rotation Auto-stop setting does not work. [. . . ] Driver bit or socket bit Failure to use the correct size driver bit or socket bit will cause a reduction in the fastening torque. Even though the torque coefficient and the class of bolt are the same, the proper fastening torque will differ according to the diameter of bolt. ⷠEven though the diameters of bolts are the same, the proper fastening torque will differ according to The manner of holding the tool or the material of driving position to be fastened will affect the torque. CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool. [. . . ]