Milwaukee 6580-20 Manuel De L'utilisateur page 7

Driving Decking Screws
For Screwdrivers with Depth Locators
Rated 0-2500 RPM
Standard decking screws are generally
designed for attaching wood to wood studs.
MILWAUKEE Screwdrivers are ideal for
driving these types of decking screws. The
depth setting is very important. Refer to the
guide below for the correct depth setting
(Fig. 12).
Fig. 12
Correct. Head of
screw is below
surface.
Too deep. Head of
screw punches hole
in surface, allowing
moisture to collect.
Decrease depth.
Too shallow. Head of
screw extends above
surface. Increase
depth.
1. Select the proper decking screw for each
job. Pilot holes are not needed. To insert
screws, place the screw onto the insert
bit, then align the screw against the work
surface, making sure to hold the tool and
screw square to the work surface.
If the tool or screw are misaligned,
the screw will not drive into the work
surface or it will not drive straight. Wood
screws have sharp points or drill points,
and course threads that help the screw
through the wood.
2. Pull the trigger and push the tool forward
to sink the screw into the wood. A quick
motion will engage the snap-action
clutch, cause the screw to start rotat-
ing, sink the screw and disengage the
snap-action clutch within a fraction of a
second. If pressure is not maintained on
the tool after engaging the snap-action
clutch, the screw will not properly seat.
The snap-action clutch will automatically
disengage and the insert bit will stop
rotating once the screw has been driven
to the selected depth.
These screwdrivers feature a snap-ac-
tion clutch, which may ratchet slightly
when the screw is sunk to the selected
depth.
NOTE: Practice driving screws into
pieces of scrap material to become
familiar with the tool and the snap-
action clutch action before attempting to
drive screws into the workpiece.
3. To remove screws, remove the loca-
tor assembly and switch the forward/
reverse switch to the reverse position.
Reattaching the locator assembly will
not change the depth setting.
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Driving Self-Drilling Screws into
Cold-Formed Steel Framing
For Adjustable Torque Screwdrivers
Rated 0-2500 RPM
Fig. 13
Sheet to sheet
Sheet to structure
Structure to structure
Wood to structure
Corrugated siding
Follow this procedure when working with light
gauge sheet metal, 20 gauge and thicker.
The screw may hesitate slightly when it
fi nishes breaking through the fi rst layer of
material and starts to penetrate the sheet
metal. This is normal. Keep fi rm pressure on
the tool until the screw is fully seated.
Self-drilling and self-tapping screws drill, tap
and fasten in one quick, easy motion without
a separate drilling operation. Their unique
design works in metal up to 1/2" thick, giving
a strong, reliable hold. The drill point ensures
rapid drilling and consistently low drilling
pressure while the drill fl utes remove drilling
chips. The pilot section ensures that drilling
is completed before the fi rst thread engages
the material. These screws can be used in
many applications (Fig. 13).
1. Insert screw into the hex socket and
align the screw against the work
surface.
2. Pull the trigger while pushing the tool
forward. This motion will engage the
drive clutch, causing the screw to start
rotating. If pressure is not maintained on
the tool, the drive clutch will disengage
and the screw will stop rotating.
When the selected torque is fully
reached, the torque clutch will ratchet.
If the screw is not fully seated, increase
the torque setting number until the
desired torque is obtained.
NOTE: Practice driving screws into
pieces of scrap material to become
familiar with the tool and the clutch
action before attempting to drive screws
into the workpiece.
3. To remove screws, switch the forward/
reverse switch to the reverse position.
Driving Wood Screws
When driving wood screws, a pilot hole is
recommended to make driving easier and
to prevent splitting the wood. As a general
rule, the pilot hole should have a diameter
of approximately 70% the size of the screw
diameter. Hardwood pilot holes should have
a diameter of approximately 90% the size of
the screw diameter. The depth of the pilot
hole should be shorter than the length of the
screw by at least one screw diameter. This
allows the tip of the screw to bite into the
wood for extra holding power.
Counterbore the top portion of the hole for
a free fi t of the shank between the screw
head and the threads. When using fl at head
screws, countersink the top of the hole to
allow the screw head to be driven fl ush with
the work surface. Use soap or wax for easier
screw insertion if necessary.
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