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sfpm .............surface feet ..................... safety alert
..................... per minute symbol
SPM .............strokes per minute
SAVE THESE INSTRUCTIONS
FOR FUTURE USE
Motor
Be sure your power supply agrees with the nameplate marking. Voltage
decrease of more than 10% will cause loss of power and overheating.
D
EWALT tools are factory tested; if this tool does not operate, check
power supply.
COMPONENTS (Fig. 1, 5)
WARNING: Never modify the power tool or any part of it. Damage
or personal injury could result.
A. Bail handle F. 1/2" (13mm) keyed chuck
B. Speed selector lever G. E-Clutch
TM
indicator
C. Forward/reverse button (DWD460)
D. Trigger switch H. Knuckle guard (DWD460)
E. Bail handle bolt I. Side handle (two positions)
INTENDED USE
The DWD450 and DWD460 heavy-duty stud and joist drills are
designed for professional drilling at various work sites (i.e., construction
sites). DO NOT use under wet conditions or in presence of flammable
liquids or gases.
These heavy-duty stud and joist drills are professional power tools.
DO NOT let children come into contact with the tool. Supervision is
required when inexperienced operators use this tool.
• Avoid prolonged contact with dust from power sanding,
sawing, grinding, drilling, and other construction activities.
Wear protective clothing and wash exposed areas with
soap and water. Allowing dust to get into your mouth, eyes, or
lay on the skin may promote absorption of harmful chemicals.
WARNING: Use of this tool can generate and/or disperse dust,
which may cause serious and permanent respiratory or other
injury. Always use NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles away from face
and body.
WARNING: Always wear proper personal hearing protection
that conforms to ANSI S12.6 (S3.19) during use. Under some
conditions and duration of use, noise from this product may
contribute to hearing loss.
• The label on your tool may include the following symbols. The
symbols and their definitions are as follows:
V ...................volts A ......................amperes
Hz .................hertz W .....................watts
min ...............minutes
or AC ..........alternating
or DC ...direct current current
.................Class I Construction or AC/DC ...alternating
.....................
(grounded) ........................or direct
.................Class II Construction current
(double insulated)
n
o ....................no load
…/min ..........per minute speed
BPM .............beats per minute
n ......................rated
IPM ...............impacts per minute
........................speed
RPM .............revolutions per
.....................earthing
minute terminal