7 ENGLISHNOTE: If the driver bit is not inserted deep enoughinto the sleeve, the sleeve will not return to its originalposition and the driver bit will not be secured. In thiscase, try re-inserting the bit according to the instruc-tions above.NOTE: When it is dif¿cult to insert the driver bit, pullthe sleeve and insert it into the sleeve as far as it willgo.NOTE: After inserting the driver bit, make sure that itis ¿rmly secured. If it comes out, do not use it.Installing hook132► 1. Groove 2. Hook 3. ScrewThe hook is convenient for temporarily hanging the tool.This can be installed on either side of the tool. To installthe hook, insert it into a groove in the tool housing oneither side and then secure it with a screw. To remove,loosen the screw and then take it out.OPERATIONThe proper fastening torque may differ depending uponthe kind or size of the screw/bolt, the material of theworkpiece to be fastened, etc. The relation between fas-tening torque and fastening time is shown in the ¿gures.Proper fastening torque for standard bolt140(103)120(89)100(74)80(59)60(44)40(30)20(15)0M16(5/8")M10(3/8")M8(5/16")M14(9/16")M12(1/2")212.01.0M16(5/8")M14(9/16")M12(1/2")M10(3/8")M8(5/16")N•m(ft•lbs)► 1. Fastening time (second) 2. Fastening torqueProper fastening torque for high tensile bolt21200(148)180(133)160(118)140(103)120(89)100(74)80(59)60(44)40(30)20(15)0M14(9/16")M12(1/2")M10(3/8")M8(5/16")2.0 3.01.0N•m(ft•lbs)M14(9/16")M12(1/2")M10(3/8")M8(5/16")► 1. Fastening time (second) 2. Fastening torqueHold the tool ¿rmly and place the point of the driver bitin the screw head. Apply forward pressure to the tool tothe extent that the bit will not slip off the screw and turnthe tool on to start operation.