Drilling; Wood Drilling; Metal Drilling; Masonry Drilling - Craftsman nextec 320.10003 Operator's Manual

WARNING: Make sure to
insert the drill bit straight into
the chuck jaws. Do not insert
the drill bit into the chuck jaws
at an angle and then tighten, as
shown in figure 12. This could
cause the Drill bit to be thrown
from the Drill, resulting in pos-
sible serious personal injury or
damage to the chuck.
DRiLLiNG (Fig. 13)
1. Check that the direction-
of-rotation selector is at
the correct setting (forward
or reverse).
2. Secure the material to be
drilled in a vise or with
clamps to keep it from turn-
ing as the drill bit rotates.
3. Hold the Drill firmly, and
place the bit at the point to
be drilled.
4.
5.
Depress the trigger switch
to start the Drill.
Fig. 12
WRONG!
NRONG!
Fig. 13
Move the drill bit into the
workpiece, applying only
enough pressure to keep
the bit cutting. Do not force the Drill or apply side pressure to elongate a
hole. Let the tool do the work.
6. When drilling hard, smooth surfaces, use a center punch to mark the desired
location of the hole. This will prevent the drill bit from slipping off-center as
the hole is started.
7. 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 the drilling action.
8. 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.
_L. WARNING: This Drill is equipped with an electric brake. When the brake is
functioning properly, sparks may be visible through the vent slots in the housing.
This is normal and results from the action of the brake.
WOOD DRiLLiNG
For maximum performance, use high-speed steel or brad-point bits for wood drilling.
1. Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
2. Increase speed as the drill bit bites into the material.
3. When drilling "through" holes, place a block of wood behind the workpiece
to prevent ragged or splintered edges on the back side of the hole.
METAL DRiLLiNG
For maximum performance, use high speed steel bits for metal or steel drilling.
1. 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 the drilling action.
2. Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
3. Maintain a speed and a pressure which allow cutting without overheating
the bit. Applying too much pressure will:
Overheat the Drill.
Wear the bearings.
Bend or burn bits.
Produce off-center or irregularly shaped holes.
MASONRY DRiLLiNG
For maximum performance, use carbide-tipped masonry bits when drilling holes
in brick, tile, concrete, etc.
1. Maintain a speed and a pressure which allow cutting without overheating
the bit or Drill. Applying too much pressure will:
Overheat the Drill.
Wear the bearings.
Bend or burn bits.
Produce off-center or irregular-shaped holes.
2. Apply light pressure and medium speed for best results in brick.
3. Apply additional pressure for hard materials such as concrete.
4. When drilling holes in tile, practice on a scrap piece to determine the best
speed and pressure.
5. Begin drilling at a very low speed to prevent the bit from slipping off the
starting point.
10003 ManuaLRevised_08 0724 Page 24 10003 ManuaLRevised_08 0724 Page 25