1 Information about the documentation
1.1 Explanation of signs used
1.1.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words
are used in combination with a symbol:
DANGER! Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING! Draws attention to a potentially dangerous situation that could lead to serious per-
sonal injury or fatality.
CAUTION! Draws attention to a potentially dangerous situation that could lead to slight personal
injury or damage to the equipment or other property.
1.1.2 Symbols
The following symbols are used:
Read the operating instructions before use.
Instructions for use and other useful information
Wear protective glasses
Revolutions per minute
Revolutions per minute
Rated speed
Diameter
Protection class II (double-insulated)
1.1.3 Illustrations
The illustrations in these operating instructions are intended to convey a basic understanding and may differ
from the actual version of the product:
These numbers refer to the corresponding illustrations.
The numbering in the illustrations reflects the order of the work steps in the illustration and may
deviate from the numbering of work steps in the text.
Item reference numbers are used in the overview illustration. In the product overview section, the
numbers shown in the legend relate to these item reference numbers.
1.2 About this documentation
▶ Read these operating instructions before the product is used or operated for the first time. This is a is a
prerequisite for safe, trouble-free handling and use of the product.
▶ Observe the safety instructions and warnings printed in this documentation and on the tool.
▶ Always keep the operating instructions with the tool and make sure that the operating instructions are
with the tool when it is given to other persons.
1.3 Product information
Hilti products are designed for professional use and may be operated, serviced and maintained only by
trained, authorized personnel. This personnel must be informed of any particular hazards that may be
encountered. The product described and its ancillary equipment may present hazards when used incorrectly
by untrained personnel or when used not as directed.
▶ Make a note of the designation and serial number printed on the identification plate in the following table.
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