Full Product Manual

14
15
Soft materials such as Aluminum,
Brass, Copper, Plastics hard
rubber and Wood, a Shear Tooth
file provides fast material removal
with good smoothing qualities. The
combination of the Single Cut and
the Long Angle helps the Shear
Tooth file to clear. Because of the
Long Angle the file has a tendency
to run to the left on narrow surfaces.
This can be overcome by filing with
a diagonal stroke to the right.
Precision filing
For filing such as that employed
by the instrument industry, there
is a range of Swiss Pattern files.
The delicate precision work calls
for these files be made to exacting
measurements and finer cuts.
The flat Precision file should be
used with a slow smooth stroke
moving the file laterally along the
work on the forward stroke. In using
Round or Half Round types, the
filing should be clockwise to ensure
a deeper cut and a smoother finish.
Saw Filing
Efficient saw filing demands, first
of all, a steady hand and a good
file. Also, the file must be correct
in design, cut and size for the type
of saw and the type of teeth to be
filed.
The stroke must be absolutely level,
as the slightest rocking will affect
the cutting edge of the saw-tooth.
The file must be lifted off the work
when drawing back for the next
stroke.
The teeth have to be set at the
correct angle in relation to each
other. This is best done with a "Saw
Set" usually before filing. However,
some filers prefer to do this after
the saw has been filed. To file saw
teeth, provisions must be made to
hold the saw. A saw vise should be
Filing soft materials
used, to be sure there is no chatter
or vibration in the saw. This will
shorten the life of the file.
Handsaws of two types, the
Crosscut and the Rip must be
reset, normally every fourth or
fifth filing. Check that teeth are
of equal height. This can be
accomplished by passing the file
lightly lengthwise along the tops of
the teeth. Some may be flattened,
others are hardly touched. The
flattened teeth will require more
filing to put them in shape.
These files should be used:
Sharpening hand saws
Five 7"/175mm Regular Taper or 6"/150mm Heavy Taper
Five and a half 7" /175mm Regular Taper or 6" /150mm Heavy Taper
Six 7" /175mm or 8" /200mm Slim Taper
Seven 6" /150mm, 7" /175mm Slim Taper and
9" /225mm or 10" /250mm Double Ender
Eight 6" /150mm Slim Taper or 7" /175mm Extra Slim
Taper or 9"/225mm Double Ender or
8"/200mm Double Extra Slim Taper
Nine 6" /150mm Extra Slim Taper, 7"/175mm Double
Extra Slim Taper or 8"/200mm Double Ender
Ten 5" /125mm or 6" /150mm Extra Slim Taper,
6"/150mm Double Ender