Civil Engineering Reference
In-Depth Information
A battery-powered circular saw is extremely useful
While the above-mentioned tools might be considered desirable, others are essential. For
the framing stage, these include a jigsaw and small (165mm or 190mm) circular saw, and
these
do
need to be high quality, since cheap versions will not only compromise accur-
acy but also frequently fail to make the grade in terms of the power needed to cope with
the work. The circular saw needs to be powerful enough to rip 'eight by four' (2400mm
x 1200mm) sheets of hardwood ply and OSB (oriented strand board) with a good accur-
acy of cut. We have found an 18V cordless circular saw to be best for convenience of use
around site, but while these are powerful enough to cut, for example, 11mm-thick OSB
sheets, they are not really up to anything thicker or denser, and so we always carry the
mains-powered version of this saw as well.
Most circular saws are supplied with a metal rip fence which slots into the base plate and
guides the saw by running along the edge of the sheet being cut. This rarely gets used, as
you will most often be ripping or cross-cutting in the middle of the sheet, for which the
fence is too short.
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