-10-
2,600 min
-1
0
500
1,000
1,500
2,000
Continuous
N
･
m
kgf
･
cm
50
100
150
200
100
25
50
150
0
2,000 min
-1
1,200 min
-1
500 min
-1
Continuous
Continuous
Continuous
7-2. Tightening Torque
7-2-1. Comparison of tightening torque in each mode
The data below shows the tightening torque obtained in each mode of the Model WH 14DBL.
Please note that the data are intended for reference purposes only because the actual tightening
torque may vary depending on hardness of workpieces, diameter of thread, ambient temperature,
characteristics of the battery, etc.
• Tightening torque in continuous mode
The following graph shows the torque required for tightening an M14 high-strength bolt in 3
seconds with a socket adapter and a hexagon socket (overall length 40 mm).
Fig. 3 Tightening torque in continuous mode
• Tightening torque in single mode
The single mode is applicable to delicate works such as tightening small diameter screws and
light load works such as affixing plasterboards. Please note that the actual tightening torque
may vary depending on hardness of workpieces, diameter of thread, ambient temperature,
characteristics of the battery, etc. If the appropriate tightening torque is exceeded especially
when tightening small diameter machine screws, the screws may be damaged. The customers
should be advised to adjust the rotational speed according to the application with the high/low
selector switch and check that the tightening torque is appropriate before operation.
Rotational
speed
Single/
Continuous