[] Ifthebitjamsintheworkpieceorifthedrillstalls,
stopthetoolimmediately.Removethebitfromthe
workpieceanddeterminethereasonforjamming.
NOTE:Thisdrillhasanelectricbrake.Whentheswitch
triggerisreleased,thechuckstopsturning.Whenthe
brakeisfunctioningproperly,sparkswillbevisiblethrough
theventslotsonthehousing.Thisis normalandisthe
actionofthebrake.
WOODDRILLING
Formaximumperformance,usehighspeedsteelbitsfor
wooddrilling.
[] Selectnormaldrillingmode.
[] Begindrillingataverylowspeedto preventthebit
fromslippingoffthestartingpoint.Increasethespeed
asthedrillbitbitesintothematerial.
[] Whendrillingthroughholes,placea blockofwood
behindtheworkpiecetopreventraggedorsplintered
edgesonthebacksideofthehole.
LEVEL
METAL DRILLING
For maximum performance, use high speed steel bits for
metal or steel drilling.
[] Select normal drilling mode.
[] Begin drilling at a very low speed to prevent the bit
from slipping off the starting point.
[] Maintain a speed and pressure which allows cutting
without overheating the bit. Applying too much
pressure will:
• Overheat the drill;
Wear the bearings;
Bend or burn bits; and
Produce off-center or irregular-shaped holes.
[] When drilling large holes in metal, start with a small bit,
then finish with a larger bit. Also, lubricate the bit with
oil to improve drilling action and increase bit life.
MASONRY DRILLING
For maximum performance, use carbide-tipped masonry
impact bits when drilling holes in brick, tile, concrete, etc.
[] Slide adjustment button on hammer drill left for
hammer mode.
[] Apply light pressure and medium speed for best results
in brick.
[] Apply additional pressure for hard materials such as
concrete.
[] When drilling holes in tile, practice on a scrap piece to
determine the best speed and pressure. Begin drilling
at a very low speed to prevent the bit from slipping off
the starting point.
Fig. 16
17
To Next Page
Loading...
Need help?
General