There are several ways to cut masonry. A bolster, cold chisel and lump hammer
can be used, but they’re not always very neat and accurate. An angle grinder can
be used, but they’re difficult to guide and regulate the cutting angle and
depth, they can be dangerous if not used correctly, and they make copious
amounts of dust.
A far superior way to cut masonry is with a wet saw. Now don’t be frightened
about the mix of water and electricity, because the Ryobi Wet Concrete Cutter is
specially constructed for the purpose, including an inbuilt safety switch (RCD
or Residual Current Device). It has a 125mm diamond blade, and a large baseplate
that tilts and adjusts for depth. It’s nicely balanced and lightweight.
The really important feature is the spray-bar. This wets the blade on both sides
to keep it cool and catch dust. You will get a pool of mud where you’re working,
but you won’t cover the neighbourhood in cement dust!
It’s great for “chasing” walls for power or water because you can accurately set
the depth. It will cut bricks and clay pavers, concrete, blocks, tiles,
terracotta, terrazzo, granite, marble and sandstone.
It’s easier to follow lines
with this machine, because there’s no dust.
Ryobi tools are available at all good hardware stores.