dg wrote:

I'm looking for a sds drill/breaker for occasional use, well mainly for
the breaker function and something at the cheaper end of the market -
less than £100.

For the money:

http://www.screwfix.com/app/sfd/cat/...45647&ts=10819

Looks like a good deal at the moment.

I have noticed that those cheap breakers (with the vertical motor)
weigh up to 6kg but the impact force or 'blows per minute' is often
lower than a branded 2kg drill/breaker.

So, is weight more important than the BPM for breaking?

Weight does not make that much difference to its performance when
breaking. You basically need "enough" force on the bit and no more for
optimum results. The aim is to keep the drill "floating" on the hammer
action. With some of the heavier examples that may mean you need to
carry it even when drill straight down.

And what advantage would a 1000w motor with 3200 BPM have over a 500w
with 5000 BPM?

If it is effectiveness as a breaker you are after then ignore the input
power, but look at the impact energy per blow, and then the number of
blows per min.

For the 2kg class drills, some of the Hitachi models boast very high
impact per blow (over 3J IIRC). The bigger "can" type body models ought
to be able to do double that in the decent brands, but as you say, the
cheapies are often no better than the decent lightweight ones in this
respect.

--
Cheers,

John.

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