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Important: Some of the following symbols may be used on your tool. Please study them and
learn their meaning. Proper interpretation of these symbols will allow you to operate the tool
better and safer.
Symbol
V
Ah
A
Hz
W
kg
min
s
⌀
n
0
n
.../min
0
1, 2, 3, ...
I, II, III,
0
800.544.2843
Designation / Explanation
Volts (voltage)
Amp hour (measurement of battery capacity)
Amperes (current)
Hertz (frequency, cycles per second)
Watt (power)
Kilograms (weight)
Minutes (time)
Seconds (time)
Diameter (size of drill bits, grinding wheels, etc.)
No load speed (rotational speed at no load)
Rated speed (maximum attainable speed)
Revolutions or reciprocation per minute (revolutions, strokes, surface speed,
orbits etc. per minute)
Off position (zero speed, zero torque...)
Selector settings (speed, torque or position settings. Higher number means
greater speed)
Infinitely variable selector with off (speed is increasing from 0 setting)
Arrow (action in the direction of arrow)
Alternating current (type or a characteristic of current)
Direct current (type or a characteristic of current)
Alternating or direct current (type or a characteristic of current)
Class II construction (designates double insulated construction tools)
Earthing terminal (grounding terminal)
www.calcert.com
15
10
20
5
25
0
30
Symbols
6
sales@calcert.co
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