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General => General => Topic started by: locksmith on 25 November 2015, 09:27:25 am

Title: Engineers - what drill bits
Post by: locksmith on 25 November 2015, 09:27:25 am: Need recommendations for HSS drill bits, just regular sizes ie. 2 - 12mm

Used Rawlplug for many years but they've obviously changed something as they blunt and snap real easily nowdays.

So what brands are good?
Title: Re: Engineers - what drill bits
Post by: davey boy on 25 November 2015, 09:53:22 am: I use Dormer at work. They work well on exotic stainless steels so should be good for you
Title: Re: Engineers - what drill bits
Post by: mickvp on 25 November 2015, 10:48:44 am: we use sandvik, seco, and walter in work. sandvik and walter are ok (I think they are the same company now), but seco are cheap sh*t.

I should point out that most of the tools we use in an industrial engineering environment are crown-loc drills now (the shaft is permanent and you just replace the tip of the drill).
Title: Re: Engineers - what drill bits
Post by: Frosties on 25 November 2015, 10:57:34 am: I've sat with these for a while now - do the job for me every time

http://www.amazon.co.uk/Piranha-1-10mm-Metal-Bullet-Pieces/dp/B007FUF9F4 (http://www.amazon.co.uk/Piranha-1-10mm-Metal-Bullet-Pieces/dp/B007FUF9F4)
Title: Re: Engineers - what drill bits
Post by: celticdog on 25 November 2015, 11:00:08 am: Quote from: davey boy on 25 November 2015, 09:53:22 am
I use Dormer at work. They work well on exotic stainless steels so should be good for you

+1 for Dormer, long live the Jobber! Of course it all depends on what you're drilling.
Title: Re: Engineers - what drill bits
Post by: locksmith on 25 November 2015, 12:15:05 pm: Dormer thats a blast from the past, used to use them years ago and I can get them trade so I'll give them a try.

I use the bits every day on various lock fitting/drilling duties
Title: Re: Engineers - what drill bits
Post by: lew600fazer on 26 November 2015, 12:11:45 am: A lot of the time it is not the drill that is the problem but the operator. Depending on what you are drilling it is down drill head speed, cooling fluid being used, or lubricant at the drill head. Most drill failures are down to not letting the bit do it's job, as in drill!!, not trying to punch the hole through.
Title: Re: Engineers - what drill bits
Post by: slimwilly on 26 November 2015, 05:43:21 am: Yes. True. S low head speed is a must.
Title: Re: Engineers - what drill bits
Post by: johnakay on 26 November 2015, 10:25:59 am: on harden steel you need to keep the drill sharp and correct speed as well as lube, I use Rocol lube.
stinks when hot but does the job.
http://www.ebay.co.uk/itm/Rocol-Sapphire-Precision-Lube-400ml-34341-ROC34341-/272035358976?hash=item3f56922900:g:GWsAAOSwYHxWOIfo (http://www.ebay.co.uk/itm/Rocol-Sapphire-Precision-Lube-400ml-34341-ROC34341-/272035358976?hash=item3f56922900:g:GWsAAOSwYHxWOIfo)
Title: Re: Engineers - what drill bits
Post by: locksmith on 27 November 2015, 11:54:44 am: So is holding the battery drill like a gun slinger not the way to go? :lol
Title: Re: Engineers - what drill bits
Post by: Frosties on 27 November 2015, 12:31:03 pm: Quote from: locksmith on 27 November 2015, 11:54:44 am
So is holding the battery drill like a gun slinger not the way to go? :lol

Nope! Nor is it cool to pretend you are Robocop :lol
Title: Re: Engineers - what drill bits
Post by: bobdog on 27 November 2015, 02:18:19 pm: if your drilling stainless steel you can get drill bits for drilling stainless steel, not much more expensive realy.