Plunge Cutting; Circle Cutting - Bosch 120V - JS5 Jig Saw Tool Operating/Safety Instructions Manual

BM 2609932576 11-07

PLUNGE CUTTING

Plunge cutting is useful and time-saving in
making rough openings in softer materials. It is
not necessary to drill a hole for an inside or
pocket cut. Draw lines for the opening, hold the
saw firmly, tilt it forward so that the toe of the
saw foot rests on the work, but with the blade
well clear of the work. Start the motor, and
then very gradually lower the blade. When it
touches, continue pressing down on the toe of
the saw foot slowly pivoting the saw like a
hinge until the blade cuts through and the foot
rests flat on the work. Then saw ahead on the
cutting line. We do not recommend plunge
cutting with a scroll blade (Fig. 8).
To make sharp corners, cut up to the corner,
then back up slightly before rounding the
corner. After the opening is complete, go back
to each corner and cut it from the opposite
CIRCLE AND PARALLEL CUTTING GUIDE
(Not included, available as accessory)
This accessory is available at an extra cost. It
is used for fast and accurate straight and
circle cutting (Fig.9).
PARALLEL CUTTING
1. Insert bar of guide through lock knob clamp,
then through the slots provided in foot, from
either side of foot with the edge guide facing
DOWN (Fig. 9).
2. Hook lock knob clamp onto edge of
footplate, adjust fence to desired width, and
securely tighten lock knob clamp (Fig. 9).
BAR

CIRCLE CUTTING

1. Before attaching the guide, draw a circle
and predrill a 13/64" center hole in workpiece.
2. Drill or plunge cut near the circles edge,
turn saw off and disconnect the plug from
power source.
11/26/07 11:36 AM
FIG. 9
LOCK
KNOB
CLAMP
GUIDE
PIN
EDGE GUIDE
DOWN
Page 10
direction to square it off. Do not try to plunge
cut into hard materials such as steel.
3. Attach guide to saw with edge guide facing
UP as shown (Fig. 10).
4. Remove guide pin from end of guide, push
pin through hole provided in guide, then into
center hole of workpiece.
5. Measure the distance from the selected
hole to the blade to be equal to the circle
radius.
6. Insert plug into power source, hold the saw
firmly, squeeze trigger and slowly push the
saw forward. To make a hole, cut from inside
the circle; To make wheels or discs, cut from
the outside.
Cutting Tip: Cut slowly so the blade will stay
straight in the cut. Place small wedges in the
cut as shown in Fig. 10, to keep the inner
circle from spreading when near the end of
the cut.
FIG. 10
GUIDE PIN
HOLE
-10-
FIG. 8
2
1
EDGE
GUIDE UP
GUIDE PIN