Craftsman 315.271270 - Manual (Page 14)

OPERATION
APPLICATIONS
(Use only for the purposes listed below)
■ Hammer drilling in concrete and masonry.
■ Drilling in wood.
■ Drilling in ceramics, piastics, fibergiass, and lami­
nates.
■ Drilling in both hard and soft metals.
■ Using driving accessories, such as driving screws
with screwdriver bits.
LEVEL DRILLING
See Figure 17.
A convenient feature provided on your drili is a level. It is
recessed in the motor housing on top and end of your
drill. It can be used to keep drill bits ievei during most
drilling operations.
DRILLING
See Figure 18.
END VIEW
LEVEL
Fig. 17
LEVEL
Fig. 18
When driiling hard smooth surfaces use a center punch to
mark desired hoie location. This wili prevent the driii bit
from slipping off center as the hole is started. However,
the iow speed feature allows starting holes without center
punching if desired. To accomplish this, simply operate
your drill at a low speed until the hole is started.
The material to be drilled should be secured in a vise or
with clamps to keep it from turning as the drill bit rotates.
Hold tool firmly and place the bit at the point to be drilled.
Depress the switch trigger to start tool.
Move the drill bit into the workpiece applying only enough
pressure to keep the bit cutting. Do not force or apply side
pressure to elongate a hole.
VV WARNING: Be prepared for binding or bit
breakthrough. When these situations occur, drill has
a tendency to grab and kick opposite to the direction
of rotation and could cause loss of control when
breaking through material. If not prepared, this loss
of control can result in possible serious injury.
When drilling metals, use a light oil on the drill bit to keep
it from overheating. The oil will prolong the life of the bit
and increase the drilling action.
If the bit jams in workpiece or if the drill stalls, release
switch trigger immediately. Remove the bit from the
workpiece and determine the reason for jamming.
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