SDS drill bits in steel
The Wanderer
I've used an SDS drill several times into various types of masonry.
I have to drill a 14mm hole through a steel gate post and then on into a
brick pier. Do 'ordinary' SDS drill bits work in steel as well as masonry,
or is there a special type of HSS drill bit for use with an SDS drill?
--
The Wanderer
Usenet is like a troupe of performing elephants with diarrhoea:
massive, difficult to redirect, awe-inspiring, entertaining perhaps,
but a source of mind-boggling amounts of excrement when you least expect
it.
Andy Dingley
> Do 'ordinary' SDS drill bits work in steel as well as masonry,
No. They're sharpened as a blunt chisel, for robustness. In steel they
just won't cut, whether on hammer or plain rotation. You _could_ re-
shape one on a green grit wheel, but it would then suffer once you hit
concrete. In brick it wouldn't be so bad, unless they're blue or
burned bricks.
I'd probably drill it carefully through the steel alone as
8,10,12,14mm with a twist drill, then swap for the SDS and do the
brick. If I had a few to do, I might even get the oxy set out and burn
the steel first before drilling the brick.
> or is there a special type of HSS drill bit for use with an SDS drill?
The nearest to this is the Bosch Constructor series (carbide and
sharp), which are well worth acquiring for drilling into abrasive
cement boards. However these aren't hammer drills as such, certainly
not SDS, and I think they go up to 10mm, not 14.
John Rumm
> I've looked through the FAQ but this aspect of the subject isn't covered.
>
> I've used an SDS drill several times into various types of masonry.
>
> I have to drill a 14mm hole through a steel gate post and then on into a
> brick pier. Do 'ordinary' SDS drill bits work in steel as well as masonry,
Alas no, hammer action is not going to help much, and a SDS masonry bit
won't cut steel in any meaningful way.
> or is there a special type of HSS drill bit for use with an SDS drill?
Not that I have seen. You can use a normal HSS one in a SDS adaptor
chuck (or interchangeable chuck if your SDS has one).
--
Cheers,
John.
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The Medway Handyman
> I've looked through the FAQ but this aspect of the subject isn't
> covered.
>
> I've used an SDS drill several times into various types of masonry.
>
> I have to drill a 14mm hole through a steel gate post and then on
> into a brick pier. Do 'ordinary' SDS drill bits work in steel as well
> as masonry, or is there a special type of HSS drill bit for use with
> an SDS drill?
I used an SDS bit to enlarge (not drill from scratch) a couple of holes in
m/s once (out of sheer desperation, only bit on the van big enough). Just
about managed to enlarge 2 holes by a few mm. Drill bit wrecked completely.
--
Dave - The Medway Handyman
www.medwayhandyman.co.uk
js.b1
certainly do 12mm.
The Wanderer
> On 18/10/2010 11:50, The Wanderer wrote:
>> I've looked through the FAQ but this aspect of the subject isn't covered.
>>
>> I've used an SDS drill several times into various types of masonry.
>>
>> I have to drill a 14mm hole through a steel gate post and then on into a
>> brick pier. Do 'ordinary' SDS drill bits work in steel as well as masonry,
>
> Alas no, hammer action is not going to help much, and a SDS masonry bit
> won't cut steel in any meaningful way.
>
>> or is there a special type of HSS drill bit for use with an SDS drill?
>
> Not that I have seen. You can use a normal HSS one in a SDS adaptor
> chuck (or interchangeable chuck if your SDS has one).
I've seen what people had to say on the subject, which rather confirmned my
own suspicions, that SDS drill bits are intended for masonry unless one
acquires specialist (and expensive) bits.
Might I suggest a word of clarification within the FAQ about SDS drill bits
being intended for masonry only, as it isn't really covered. It may be
obvious to those using them all the time, but......
--
The Wanderer
Life is a catastrophic success.
Dave Plowman (News)
The Wanderer <the.wa...@gmx.co.uk> wrote:
> I've seen what people had to say on the subject, which rather confirmned
> my own suspicions, that SDS drill bits are intended for masonry unless
> one acquires specialist (and expensive) bits.
> Might I suggest a word of clarification within the FAQ about SDS drill
> bits being intended for masonry only, as it isn't really covered. It may
> be obvious to those using them all the time, but......
My thinking is they (SDS) are like masonry bits for an ordinary hammer
drill etc. Designed to drill masonry - so why would you want to use them
on steel? Would you also have a warning that 'flat' wood bits aren't
intended for steel or masonry? ;-)
--
*We have enough youth, how about a fountain of Smart?
Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.
The Wanderer
> In article <vv75044vgcjc.8krbacg3luez$.d...@40tude.net>,
> The Wanderer <the.wa...@gmx.co.uk> wrote:
>> I've seen what people had to say on the subject, which rather confirmned
>> my own suspicions, that SDS drill bits are intended for masonry unless
>> one acquires specialist (and expensive) bits.
>
>> Might I suggest a word of clarification within the FAQ about SDS drill
>> bits being intended for masonry only, as it isn't really covered. It may
>> be obvious to those using them all the time, but......
>
> My thinking is they (SDS) are like masonry bits for an ordinary hammer
> drill etc. Designed to drill masonry - so why would you want to use them
> on steel?
Because one or two ebay sites say 'suitable for drilling through.....' Also
some sds drills are marketed as suitable for drilling through.....'
I didn't think the drill bits were, which is why I originally phrased my
question 'Do 'ordinary' SDS drill bits work in steel as well as masonry,
or is there a special type of HSS drill bit for use with an SDS drill?'
I asked the question here because I thought I'd get a definitive answer.
--
The Wanderer
I have become more optimistic.
I now believe that things can get worse.
John Rumm
The basic answer is that *most* SDS bits are for masonry only (although
even they can bludgeon their way through wood if you don't care about
neatness!)
However there are a few special ones like SDS augers. These have a
slightly different set of flutes on the shank that mean the drill will
go in the SDS chuck, but it is not able to slide back to a position
where the hammer can reach it.
Tabby
Dave Plowman (News)
The Wanderer <the.wa...@gmx.co.uk> wrote:
> > My thinking is they (SDS) are like masonry bits for an ordinary hammer
> > drill etc. Designed to drill masonry - so why would you want to use
> > them on steel?
> Because one or two ebay sites say 'suitable for drilling through.....'
> Also some sds drills are marketed as suitable for drilling through.....'
Then if they are specials I'd expect them to do what they claim.
> I didn't think the drill bits were, which is why I originally phrased my
> question 'Do 'ordinary' SDS drill bits work in steel as well as
> masonry, or is there a special type of HSS drill bit for use with an
> SDS drill?'
It just seemed strange to me because surely few have only an SDS drill and
bits - rather than an ordinary drill and HSS ones as well?
> I asked the question here because I thought I'd get a definitive answer
Right.
--
*Heart attacks... God's revenge for eating his animal friends
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george [dicegeorge]
> Bosch Multi-Construction drill bit
Geat, I'll put them on my xmas list..
Bosch Multi Construction Drill Bit Review at:
http://www.youtube.com/watch?v=3XpKV2TUmfE
is it a good idea to put your hand so near?
[g]
logangove...@gmail.com
How is it possible for a SDS 2 cut or 4 cut which is suitable to drill concrete do its work on columns which is ladened with rebar.
Makes you think does it!
The Medway Handyman
question. They didn't know, but had never heard of a problem.
They do make SDS bits for the job though, so there must be a demand >
http://www.toolstation.com/shop/Power+Tool+Accessories/d80/SDS+Drill+Bits/sd1310/Trijet+SDS+Plus+Hammer+Drill+Bit/p46800