7
English
Inserting and Removing SDS Plus
®
 
Accessories (Fig. 1)
WARNING:  Burn hazard. ALWAYS wear gloves when changing 
bits. Accessible metal parts on the tool and bits may get extremely 
hot during operation. Small bits of broken material may damage bare 
hands.
WARNING: Do not attempt to tighten or loosen drill bits (or any 
other accessory) by gripping the front part of the chuck and turning 
the tool on. Damage to the chuck and personal injury may occur.
To insert bit, insert shank of bit about 3/4" (19 mm), no further than 
7/8" (22 mm) into chuck. Push and rotate bit until it locks in place. The 
bit will be securely held.
To release bit, pull the chuck (F) back and remove the bit.
OPERATION
 WARNING: To reduce the risk of injury, turn unit off 
and disconnect it from power source before installing and 
removing accessories, before adjusting or when making 
repairs. An accidental start-up can cause injury.
Proper Hand Position (Fig. 5)
WARNING: To reduce the risk of serious personal injury, ALWAYS 
use proper hand position as shown in Fig. 5. 
WARNING: To reduce the risk of serious personal injury, ALWAYS 
hold securely in anticipation of a sudden reaction. 
Proper hand position requires one hand on the side handle (C), with 
the other hand on the main handle (D). 
HAMMERDRILL MODE 
To use hammerdrill mode, press the mode selector button (H) and 
turn the mode selection dial (G) so the yellow arrow points to the 
corresponding symbol as shown. Use this mode for masonry drilling.
HAMMER-ONLY MODE 
For light chiseling, press the mode selector button (H) and turn 
the mode selection dial (G) so the yellow arrow points to the 
corresponding symbol as shown. 
NOTE:  The yellow arrow on the mode selection dial MUST be 
aligned with the one of the symbols at all times. There are no 
operable positions between the positions.
E-Clutch and Indicator Light (Fig. 4)
(D25416 ONLY)
The e-clutch offers increased user 
comfort and safety through an 
on-board anti-rotation technology 
capable of detecting if the user loses 
control of the hammer. When a jam is 
detected, the torque and speed are 
reduced instantly. This feature prevents 
self rotation of the tool reducing the 
occurrence of wrist injuries.
The red indicator LED (J) lights up the electronic clutch is engaged in 
any mode except the chipping mode.  
J
FIG. 4