air hammer wood chisels

[Hughman]

I found this at a yard sale yesterday:

http://ecx.images-amazon.com/images/I/41NP6T8DSGL._SS500_.jpg

I want to use the air hammer for rough chiseling on wood. there doesn't seem to be a lot of wood chisels made for these, one suggestion was to weld wood chisel blades to the stone shanks.

anyone know of a source?

[David G]

Yeah, AFIK those are metalworking tools. I've never seen them used for woodworking. I can imagine, though, a sculptor - working in large scale - finding something like this quite useful.

[The Bigfella]

Yeah - but I can't remember their name... It will come to me... I've got some in the basement. Not for the air chisel, but as an attachment for a 4" angle grinder.

I'll go take a look...

[The Bigfella]

Here you go....

http://www.arbortech.com.au/view/power-chisel/

An Aussie company... not sure if they have a US distributor - check out the link, but as you can see, they don't have the same method of retaining the chisel behind the air tool's spring

http://www.arbortech.com.au/upload/pages/power-chisel-main/pch090pi.jpg

[seo]

In the selection of tools shown in the picture at the top there's something that looks like a screwdriver. I sharpened one of these with a single bevel, like a wood chisel, and use if for VERY rough work, like splitting out cleats and frames and like that.
The main use I have for this tool on a wooden boat was when I had a 63' wooden hull that was fastened (in 1932) with #24 X 3.5" wood screws. I would carefully grind a chisel-bit to fit the screw slots, and then use the chisel bit to essentially forge a new slot into the head, enlarging and deepening the existing slot. When that was done I'd let the air hammer run for 30 seconds or so, rattling the screw and breaking it loose. Screws were then removed using a pneumatic 3/8" ratchet wrench with some hand-made screwdriver bits. Success rate in removing screws was over 95%, which is pretty good for steel screws. Forging in a deep square slot was essential to getting enough force on the screw, and the rattling action of the air impact tool was what broke the screws loose.

[Hughman]

I need to create/find gouges. flat chisels won't accomplish what I want.

[The Bigfella]

Hugh

The Arbortech gouges and the angle grinder attachment I linked to work beautifully. They are NOT violent in action and are as smooth as silk with the results. I've used air chisels on metal - but having also used the Arbortech device, I wouldn't even think of trying to adapt an air tool to do the job.

[peter radclyffe]

I found this at a yard sale yesterday:

http://ecx.images-amazon.com/images/I/41NP6T8DSGL._SS500_.jpg

I want to use the air hammer for rough chiseling on wood. there doesn't seem to be a lot of wood chisels made for these, one suggestion was to weld wood chisel blades to the stone shanks.

anyone know of a source?
great idea, ive seen one used for frame fairing

[Hughman]

bigfella,

I see your arbortech, and raise you a lancelot...
http://www.katools.com/images/LANC_SQUIRE.jpg

(Circular chain saw mounted on a 4" grinder :eek::eek::eek::eek:


I like the link, tho. it looks like a keeper...

[Hughman]

great idea, ive seen one used for frame fairing

Peter, what were they using for a cutting edge?

[Bob Perkins]

Hughman - this is what you are looking for I think
http://www.woodcraft.com/product.aspx?ProductID=142273&FamilyID=3852

I've never seen an air powered power carver - These Arbor tech carvers work very nicely though.

Similar to a multimaster, but except for a side-side small movement - it has a a small inline movement that "vibrates" the cutting edge that is equal to many many small mallet hits. It is a very controllable carving motion.

[Hughman]

Bob, Thanks for the link.

I already have the air chisel, I'm casting about for solutions to use with it.
I may need to buy the arbortech if there is no option for what I already have.

[peter radclyffe]

bigfella,

I see your arbortech, and raise you a lancelot...
http://www.katools.com/images/LANC_SQUIRE.jpg

(Circular chain saw mounted on a 4" grinder :eek::eek::eek::eek:


I like the link, tho. it looks like a keeper...
these are great, they were using a sharpened air chisel, about an inch & a half wide

[peter radclyffe]

Bob, Thanks for the link.

I already have the air chisel, I'm casting about for solutions to use with it.
I may need to buy the arbortech if there is no option for what I already have.
i hear in the states you have the ultimate hand planer, a versaplaner with a spiral cutter, it knocks spots off the planers we can get, which clog up, & have a miki mouse rebating capacity, for big timber you need a one inch rebater, i still use a large b&d gutbuster drill, the last admiralty service date was a brass plate stamped 1974, i use it for keel bolts & stern tubes

[Bill Huson]

to remove lots of wood fast . . . electric chain saw!!!:eek:

Of course *real men* use gas powered chain saws to carve totem poles and the like . . .

[peter radclyffe]

to remove lots of wood fast . . . electric chain saw!!!:eek:

Of course *real men* use gas powered chain saws to carve totem poles and the like . . .
with one hand, while chewing gum, smokin marlboro & lookin in their vanity mirrors at how macho they can be, etc , a dumber role model than rambo is hard to imagine

[The Bigfella]

Don't knock the chainsaw approach in the right hands. My cousin carved the deadwood above Grantala's prop struts with a chainsaw. He got it to within 1/8" and Barry took it down from there with planes and spokeshaves. I posted a few stills from the video some time back, but that was on Imagestation.

Found the scan...

http://i240.photobucket.com/albums/ff112/igatenby/iansecond/shaping.jpg

[peter radclyffe]

Don't knock the chainsaw approach in the right hands. My cousin carved the deadwood above Grantala's prop struts with a chainsaw. He got it to within 1/8" and Barry took it down from there with planes and spokeshaves. I posted a few stills from the video some time back, but that was on Imagestation.

Found the scan...

http://i240.photobucket.com/albums/ff112/igatenby/iansecond/shaping.jpg
just joking, i carved the stems from opepe for www.patience.it (http://www.patience.it), & all the frames for 2 ,72ft trawlers with chainsaws, they've replaced my adzes

[Dan McCosh]

I have used a sharpened air chisel on occasion, to hog some rough work. All in all, it doesn't work all that well--a heavy chisel and maul is faster and easier to control.

[Dan McCosh]

Pretty damn rough way of going with a air chisel..:D


Air chisel blow travels is quite too much for fine detailed works..
Check out the blows spec on common air chisel 3500 bpm and with almost a inch of blow travel..

I use 'em as miniature jack hammer in tight quarters.. knock some perfect holes in concrete blocks..


I can't believe they move that much--If anything, it didn't seem to be moving enough to make much of a cut. That was quite a few years ago, but as I remember, the chisel seemed to make a lot of short-stoke cuts. Seemed like a good idea at the time.

[seo]

The nice thing about pneumatic wrenches and hammers is that they don't get bored or impatient. If you tell the wrench "here, hit this nut with 110 ft/lbs of toque. Hit it two thousand times." The wrench don't care. It doesn't have anywhere else it would rather be. I doesn't say to itself "I'll just give it a might heave and get this BS over with." snap. Oh, well.
Same thing with chisels. It will mindlessly hammer away at whatever force you choose, as long as you hold the tool.

[PeterSibley]

Nuthin' wrong with that.... Save some times and labors involved in teardowns and some re-assemblies..
Mind the setting upon re-assemblies, you'll be sorry later on..
I had hellva time getting those over-torqued lug nuts off during rush hour on the expressway:eek:

A good wheel brace and a nice long bit of pipe .:D