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Since: 3/15/2005
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TobyNelson
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Joined: January.24.05
Location: USA
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Posted: February.25.05 at 4:40pm | IP Logged Quote TobyNelson

Does anyone own that $850.00 set of Kraus Rotory tone hole files? And if you do own a set do you think they are worth the money?  
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stevemarti
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Joined: January.19.05
Location: USA
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Posts: 7
Posted: March.04.05 at 7:49pm | IP Logged Quote stevemarti

I have a set. Well, here's my experience. I think the finish and flatness using krause's tools might be the best of methods I've used. Much smoother than a regular fine flat file. I can compare them to ferree's new diamond faced tools in flute sizes. I think even the finer grit diamond is not quite as smooth as the Krause files, but the files might still leaves tooth marks to dress out. Is the difference between the diamond finish and Krause important? Maybe not. Think I prefer using the Ferree tool on flutes. The Krause files are definitely slower cutting. (Diamond difintely faster for flute.) On saxes I often start on with a regular file if the tone hole isn't already fairly flat and then finish with the Krause files. Are they worth it? Maybe. If the Ferree's files were available before I bought mine I might have gone that way. Also the files a very hard and should last a long time but when it dulls, I guess it's done. The diamond surface on Ferree's tool is replaceable. The large number of pilots in the Krause kit is nice to have. In general, the rotary tools let me do a good job on those tone holes that aren't easy to do with a straight file. Hope this helps.
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GordonPalmer
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Joined: January.05.05
Location: New Zealand
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Posted: March.15.05 at 1:53am | IP Logged Quote GordonPalmer

I have a set, and often use them on saxophones. However they are indeed slow cutting, and sometimes resort to my Ferrees equivalents (the round files, not the diamond tools) to cut faster.

I have put cap screws in the top so that I can use an allen key (with the bend cut off) in a battery drill, but there is a tendency to jam, so I will probably return to hexagon heads, with appropriate socket and type of universal drive in the battery drill.

These tools are FAR easier to use than ordinary files.

If any significant amount of cutting is done, then there will be a burr - less for the Kraus cutters than the Ferrees cutters. I remove this with a cone-shaped burr (with blunted point) in my dentist drill, used with great delicacy. Then finish the face with a very fine sand paper disk, also in the dentist drill.

The guides for Ferrees and Kraus rotary files are interchangeable.

I have not tried any diamond tools.
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NeilMackinnon
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Joined: May.02.05
Location: Canada
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Posted: May.05.05 at 1:22pm | IP Logged Quote NeilMackinnon

I you put a reference flat-edge across the cutting surface of the Ferree's rotary files you will find that they are not all flat.
One many, the cutting surface is bowed.

We use discs of flat metal with knobs attached, and temporary-glue 320-grit, then 600, then 1500 to get the toneholes really flat and polished.
These are hand tools, we never motor-drive a tonehole file.

Neil
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SAXGOURMET
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Joined: January.11.05
Location: USA
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Posted: August.27.05 at 6:40am | IP Logged Quote SAXGOURMET

I've used the Jim Schmidt diamond faced files for a couple of years now and would not consider anything else.
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GordonPalmer
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Joined: January.05.05
Location: New Zealand
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Posted: August.27.05 at 7:17am | IP Logged Quote GordonPalmer

" I've used the Jim Schmidt diamond faced files for a couple of years now and would not consider anything else."

For a man who claims to be quite experimental, Steve, that comes across as a very closed-minded approach. Something like the Pope when he threw Galileo in prison for suggesting the earth went around the sun. I'm sure you did not really mean that. have you actually TRIED everything else, including what Bohm has to offer? And you never know what superior method may be available tomorrow. Spark erosion perhaps?
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HansMartini
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Joined: January.11.05
Location: Canada
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Posts: 3
Posted: August.28.05 at 8:27am | IP Logged Quote HansMartini

I have watched Neil using his disks. They are quite efficient and, if you don't want to break your bank account, they work very well indeed.
Hans Martini
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SAXGOURMET
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Joined: January.11.05
Location: USA
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Posts: 0
Posted: August.28.05 at 10:03am | IP Logged Quote SAXGOURMET

I haven't tried the Bohm tools, but own some of, I think, everything else.
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