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5.
Keep the motor running when pull-
ing the bit out of a completed hole to
prevent the bit from jamming.
Metal Drilling
1.
Use high speed steel, carbide or spe-
cialty bits for metal drilling.
2.
Secure the work piece to keep it from
moving during the drilling operation.
3.
Use a punch to create a dimple for
the bit to start.
4.
Start by drilling slowly to keep the bit
from moving away from your starting
point.
5.
As the hole is established, increase
tool speed. Do not go so fast or use
so much pressure that the bit heats
up. This can damage the bit and cre-
ate an irregular hole. For hard metal,
use cutting oil to keep the bit cool.
6.
Since drilling in metal is a slow opera-
tion, you may lock the Trigger in the
ON position to maintain a constant
speed and reduce fatigue.
7.
When drilling large holes in metal,
start by drilling a smaller pilot hole,
then using a larger bit for the final
size hole.
Wood Drilling
1.
Use high speed bits or bits specially
designed for wood drilling, such as
brad point, spade bits, forstner bits,
etc.
2.
Secure the work piece to keep it from
moving during the drilling operation.
3.
Start by drilling slowly to keep the bit
from moving away from your starting
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point. Increase speed as the hole is
established.
4.
To prevent or reduce "break out"
when the bit penetrates the work
piece, clamp a piece of scrap mate-
rial to the back of the work piece.
5.
Do not lock the Trigger in the ON
position, as the bit can easily jam in
wood and the motor must be stopped
quickly.
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