Further to the thread on riving knives and specifically the sub-thread
of stacked dado head cutters therein, I went directly to the HSE
woodworking section in England with the following question:
I am not sure where to go with this question and I am hoping, since it
is related to your field, you may be able to assist by pointing me in
the right direction. It involves the use of stacked dado head cutters
on table saws in the private sector.
I have been told that these accessories are not allowed, mainly due to
some EU regulations regarding the blade spin-down time and how it is
increased beyond regulations by the heavy dado cutter sets. But I
also heard on one of the woodworking programmes on the telly (David
somebody) that as long as the arbor on the TS was long enough to
accomodate the cutters then they could be used. I also know that the
sets are sold in the UK (see
and other sources) so I am interested to know the official position on
using these sets. Are there on-line regulations I can go to?
Now I don't think that was a particularly complicated statement of the
issues. Here is the very prompt reply I received in return:
there are two considerations here. The first is braking. Woodworking
machines now have to be fitted with brakes to stop them in under 10
seconds. For details go the link for Woodworking Info. Sheet 38 below.
Secondly, if you are fitting moulding cutters into a circular saw the
has to be of the limited cutter projection type. See the link for
I hope this helps
I can't tell. Did he answer my question? Does that mean that if you
have brakes which stop a cutter-loaded arbor in 10m seconds that the
cutters can be used? Is a dado cutter considered to be a moulding
I LOVE governments! I think from now on I'll just stack 3 or 4
regulat TS blades side-by-side and make my own cutter.