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4. USING THE HAMMER DRILL

HDR-7113

Variable Speed Trigger

1.  Squeeze the variable speed 

trigger to start the drill.

Note:

 The more you squeeze 

the variable speed trigger, 

the higher the speed. The 

fastest speed achieved when 

the trigger is fully depressed 

depends on the speed setting 

of the speed selector dial.

2.  Release the trigger to stop.

Lock-On Button

The variable speed trigger can be locked in the ‘on’ position if you 

will be operating the drill for long periods.

1.  Press and hold the variable 

speed trigger to start the 

drill.

2.  Then press and hold the 

lock-on button.

3.  Release the variable speed trigger then the lock-on button. The 

drill will remain on.

4.  To stop the lock-on function, squeeze 

and release the variable speed trigger.

Hammer Drilling

Before connecting the drill to the power supply, perform a few 

simple checks:

1.  Press and release the variable speed 

trigger to ensure it is not locked on.

2.  Check the forward/reverse button for 

the correct setting.

3.  Secure the material to be drilled in a 

vice or clamp to stop it turning whilst 

drilling.

4.  Plug the hammer drill into the power supply.

5.  Hold the drill firmly and 

place the bit at the point to 

be drilled.

6.  Press and hold variable 

speed trigger to start the 

drill.

7.  Move the drill bit into the 

workpiece. Apply the lock-on 

function if required.

Note:

 Do not force the drill or apply side pressure to elongate the 

hole. Let the drill do the work.

Helpful Tips

1.  When drilling hard, smooth surfaces, use a centre punch to 

mark the desired hole location. This measure will prevent the 

drill bit from slipping off centre as you start the hole. 

2.  Alternatively, the variable speed feature allows you to start holes 

without centre punching. To accomplish this, operate the drill at 

a low speed until you start the hole.

3.  When drilling metals, use light oil on the drill bit to keep it from 

overheating. The oil will prolong the life of the bit and increase 

drilling action.

4.  If the bit jams in the workpiece or if the drill stalls, stop the tool 

immediately. Remove the bit from the workpiece and determine 

the reason for jamming.

a.

b.

a.

b.

a.

b.

WARNING! 

THE TOOL IS RECOMMENDED FOR USE 

WITH A RESIDUAL CURRENT DEVICE WITH A RATED 

CURRENT OF 30mA OR LESS.

WARNING! 

ALWAYS WEAR APPROPRIATE PPE 

(SAFETY GOGGLES, DUSK MASK & HEARING 

PROTECTION).

WARNING! 

ALWAYS USE THE AUXILIARY HANDLE 

WHEN DRILLING.

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