Cleaning Up Countersunk Holes?/Diamond Files?

Michael J. Spangler

Michael J. Spangler

Joined
Oct 8, 2003
Messages
2,181
so i have a few little neck knives, and the countersunk hole always comes out pretty sloppy, i'd like to have a cleaner finished look to it, to match the high finish of the rest of the knife. any suggestions? there must be some kind of cone shaped abrasive, a little dremel tip or maybe a carbide burr? thanks in advance for the help guys
also where to guys buy your diamond files? i'm looking for a few sizes and shapes to clean up some filework and some checkering, again to get the nice finish to go with the rest of the blade. thanks again


Mike
 
I'm not sure where i got them but i had some cone shaped grinding stones for my die grinder.Maybe take something like that and dress it up to fit the countersink.
 
Michael,

Consider (for future knives, before hardening) getting countersinks with the single diagonal hole cut through them...they cut clean. To see what I mean, check MSC p/n GS45117553.

Check MSC for grinding stones in larger (1") cone shapes...they'll do what you want.

For high end (pricey) individual diamond files check MSC or Rio Grande. For nice sets of imports in several different grits, check here:
http://www.woodcarverssupply.com/store/

If you don't have MSC or Rio Grande catalogs, get them if for no other reason to see what's available. They are designed to part a knifemaker from his money...:) When one has a specific problem, looking through the catalogs can often stimulate creative solutions...

Hope that helps!
 
Are you doing your countersinking on a drill press?i find it hard to get good results that way,using hand drill super slow gives a smooth finish.
 
Woodcarvers supply is a good company.They sell quality products,not cheap junk.I have dealt with them for many years.
If you go on their site and click "punches"in the departments list,the carving used to display the oval eye punches is one of my "Laughing Dwarf" carvings.They used to use several of my carvings in the display photos.
Stacy
 
Mike, you can use the Cratex burrs in a Dremel. They come in a couple of different cone shapes and are rubber based so there is some flex. They are available from Sheffield and other suppliers and work well. If you have any water stones they can be formed to fit any shape and will polish well.
Tom Kennedy
 
mike which type are you using now?
to add to this..
the type that looks more like a drill works well also,2 cuting edges,,
the other type that has like 5 cuting edges are rouph cuting.
 
thanks guys i'll have to give those suggestions a try. i can get a cratex at the local hardware store. i'll see how it cleans things up.

Dan: i think the one i'm using now has two or three cutting edges on it. still comes out rough though.
 
Michael J. Spangler said:
Dan: i think the one i'm using now has two or three cutting edges on it. still comes out rough though.
Click to expand...
three is like a tri pod and will rock on you causing chattering..:D yes go for the one cutter
type,, you just don't hold your mouth right for the one with more than one cutter ;) :D
 
if your countersink is still giving you trouble, sometimes putting a peice of paper down and countersink through it helps to add a slippery surface between the metal and the sink. If you are doing non ferrous material grind a little back rack on it, by this I mean take and grind the sharp edgo off the sink and that will give you a better finish, try it with an old sink first that way you don't destroy a new one.
hope this helps
claude
 
tmickley said:
try a countersink with just one flute. it cuts much smoother.
Click to expand...

I've got a small toolbox drawer half full of all sorts of countersinks that I usually got a handful at a time when buying some other used tool. All sorts of multi flute sizes and somehow I managed to get a one single flute version. It's been in that drawer for years and I finally tried it a fwe weeks ago. Damn! Why didn't someone tell me about these things sooner? It seems to work beautifully on aluminum and 01.
 
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