These are Wera Hex Plus hex keys. I have actually been using these on site.
That's a brand new set that I've just purchased but I have been using this
set on site for about three years. These are absolutely superb. If you take a look
at a normal hex key or a normal allen key you can see that all the edges are
completely flat. If you take a look at the Hex Plus in between the points there it's
actually slightly concave and that makes a massive difference when you are un
doing or tightening allen head bolts. This is the set that I've been using on
site for a few years and you will notice that these are very shallow there.
These are specifically made like that so you can get them into tight spaces.
Traditional allen keys look like that and to get in some restricted areas sometimes
you need to cut the allen key down like so
and that's been cut down using an angle grinder. So that is why I bought the set
of short ones like that they are very useful in some tight areas. The big
advantage of the Hex Plus allen keys is that these can remove bolts that have
been rounded off previously by traditional allen keys. So that's the
shallow set that I often use on site and I've just recently purchased this set.
This set was approximately £30 from eBay and the reason why I bought it is
because they are Hex Plus not only that but on the other end they actually have a
ball on the end which can hold the bolt captive. The actual ones with the ball in
go from 10 millimeter down to three millimeter the smaller ones do not
have the ball in. The ball in the end of these is very useful because it can
actually hold the bolt captive there is one particular job that I do on site
using a bolt almost identical to that but it is stainless so I can't actually
magnetize the end of the hex key. I just have to thread that through
a hole and then tighten it and if that actually drops off it goes inside the
machine and you can't get it back. So normally I can put that on the end of there
and I actually have to tape it on with insulation tape until I actually get it
started and screwed all the way home. That's a great set and as you can see
that has all the common sizes from 1.5 millimeters up to 10 millimeters.
I've actually bought some hex bits as well which can be used in a socket etc or you
can even use these in an impact driver. The instructions on the back are quite
strange in that it tells you not to use them as a pry bar or a chisel.
The big advantage of the Hex Plus is it you can undo bolts that you can't undo
normally because they are rounded off slightly. So that is it bondus allen key
and that is the correct size for these bolts you can see that that is virtually
brand-new and I can tell you that I've only actually used that once. And I have
got a Teng one there which is considerably older and that is slightly
rounded off. So if you try and undo these two socket head bolts you can see that
we've got absolutely no chance at all it won't even grip that bolt. There's just
no chance at all of that and I'll now try the Bondus one and as you can see it's
just not gripping at all because it has been rounded off. I'll now try the Hex
Plus one and I can push that in there and straight away I can feel that
that is actually gripping and we can actually use that to undo the bolt and
obviously the other two the Teng and the Bondus I've absolutely no chance at all
of gripping that. You can see that it has been partially rounded off. I'll just show you
that again, this is the Bondus allen key you can see that it just will not grip
whatsoever on that bolt. I'll ithen take the Wera Hex Plus and
push that in there and you can see that that has undone the bolt easily.
We've then got a button head these are notoriously difficult to get
out because the head is so shallow so that is the Teng one you can see that that is a
little bit rounded off so we're not going to use that we'll use the brand new
Bondus one that has only been used once and if we put that in there you can
see we just can't grip that at all.
Now take the Hex Plus put that in there and you can see that that has un done that easily.
I do have to point out that this does not work every single time but
it works most of the time. There's a very good chance that if you get one of these
that is slightly damaged you will be able to remove it using a Hex Plus.
So they were a very useful addition to any toolbox especially if you're a
professional such as a maintenance engineer or a mechanic. I hope you have found
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