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19th February 2014, 04:36 PM #1GOLD MEMBER
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Where do you buy very narrow chisels
Hi. I need some very narrow chisels. I'm after 1mm and 1.5mm wide chisels, preferably the ones with bevelled edges, not mortice chisels.
I have tried grinding down some 2.5 and 3mm wide chisels which I had. It didn't work because once the chisel gets down to 1mm I find it looses its hardness the moment one touches it to a grindstone. Perhaps some type of wet grinder would have made a difference but its not on my purchase list at the moment. Anyway, I regret doing this because 2.5mm chisels are not easy to find and now they are ruined.
My metalworking skills are very basic and I don't have much in the way of metalworking equipment, so I'm vey limited in my ability to make or modify something.
Alternatively, anything which will function as a 1mm wide chisel will do. Any ideas anyone ?
cheers
ArronApologies for unnoticed autocomplete errors.
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19th February 2014 04:36 PM # ADSGoogle Adsense Advertisement
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19th February 2014, 05:40 PM #2
I think whatever you use will have the problem of loosing hardness she you try to dry grind them unless you keep quenching them frequently.
I've made a pair of 0.8 & 1.5 mm chisels from triangular files. You need to temper them in the oven first, then you can grind them down to shape. Once you start sharpening them, it's a matter of touching them on the wheel, then quenching.
I'll have to look up the quenching times and temperatures - will post later.
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19th February 2014, 05:48 PM #3
What do you need them for?
Would a router bit do the job?
Maybe a fine bit in a dremmel or some such?
TM
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20th February 2014, 02:39 AM #4China
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Have a look here http://www.traditionalwoodworker.com.../products/402/
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20th February 2014, 05:25 AM #5
These are the narrowest commercial products I am aware of. http://www.bluesprucetools.com/cgi/c...&category=MNCH
I have a set of his paring chisels and they are top notch.
Cheers,
Rob
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20th February 2014, 07:35 AM #6SENIOR MEMBER
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Have you tried japanese chisels? I have a 1.5 and 3 mm and they work a treat!
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20th February 2014, 08:27 AM #7
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20th February 2014, 08:35 AM #8
That's gas mark 7 until golden brown on top......yum
The Blue Spruce narrow chisels are very nice, but I've always tended to make my own up as needed from (cheap) bits of McJings HSS. They do the job, but pretty they ain't.....
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20th February 2014, 12:14 PM #9.
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What are you trying to do?
Seeing as you were trying to grind it yourself it sounds like you don't need it too deep/long.
If it is to cut a groove for something like a bit of inlay then a "old woman's tooth" scratch/notch tool is easy to make.
If you use HSS you can grind it and it won't lose its hardness easily.
HSS blanks that are ~3mm square are readily available from places like McJing that you can grind back
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20th February 2014, 01:33 PM #10GOLD MEMBER
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Thanks guys. I'm going to Mcjings this weekend for other things so perhaps i should get some skinny HSS as well. I had forgotten that I can grind Hss without it loosing its hardness.
Cheers
Arron.Apologies for unnoticed autocomplete errors.
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20th February 2014, 01:53 PM #11GOLD MEMBER
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Or maybe I should pursue this line as I have some triangular saw sharpening files I dont mind sacrificing. If I put then in the oven as you suggest, then doesnt that mean the steel goes soft? Wont it make them difficult to sharpen and not inclined to stay sharp for very long?
Apologies for unnoticed autocomplete errors.
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20th February 2014, 03:07 PM #12.
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To make them soft they need to be heated to red heat ~900ºC, and then cool slowly - no domestic oven is able to do that.
A soak at ~~250ºC for an out will turn them from glass hard to something a file can usually take a bite out of.
Not all domestic ovens can reach these temperatures even if they say so on their display panel.
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20th February 2014, 03:21 PM #13Jim
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It might even be worth looking at old hacksaw blades.
Cheers,
Jim
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20th February 2014, 04:41 PM #14
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22nd February 2014, 09:44 PM #15
we still dont know what you are using them for.
you will have real problems with strength and edge support with a conventional chisel that narrow.
If it is a hand pushed tool, have you thaught about using a wood turning, thin parting tool......they look a bit like a boot knife and come about 2mm across the thin edge and about 20-25 mm wide and in high speed steel
cheersAny thing with sharp teeth eats meat.
Most powertools have sharp teeth.
People are made of meat.
Abrasives can be just as dangerous as a blade.....and 10 times more painfull.
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