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Can a Spiral Bit be sharpened???

20K views 15 replies 7 participants last post by  jschaben  
#1 ·
I recently started using a 1/2" diameter spiral bit to do some template routing. I am wondering if these spendy bits can be sharpened, either professionally or by myself?
 
#2 · (Edited)
#3 ·
Cost is the issue here. The spiral bit that I am using is a 1/2" shank with a cutting depth of 2". This bit cost me about $85. If I could get it sharpened when the time comes versus shelling out another $85, I would be more than willing to deal with the difference in diameter.
 
#4 ·
Hi

Then I will say go for it,,the normal joe blow can't resharpen them so the cost will be almost the same as a new one from MLCS..it's your money :)

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#6 ·
Bob & John,

Thanks for the resouces. This brings up another question. The bit I use has a cutting length of 2", this is because I use it to cut through dimensonal lumber (2X8) which has a nominal thickness of 1-1/2" (give or take). I use a template to do this and I cut about 1/3 of the thickness each time. If I replace my current bit with one that cuts say 1", would this work? Since I am only cutting approximately 1/2" at a time??? On the final pass (1-1/2" deep) wood the shank be rubbing against the work piece and burning it or maybe even damaging the bit from excessive heat???
 
#8 ·
Thanks Greg!

If I can manage to use a shorter bit I am on board with Bob and John. However I don't know if this is going to be a problem. Any one have experience/knowledge here? Can a spiral bit with say a 1-1/4" cutting height be used, with no adverse side effects, to cut material that is 1-1/2"+??? Any info here would be greatly appreciated.
 
#10 · (Edited)
Hi

I don't buy high price bits the norm,I can't recall where I got the long ones (carb.)from but I would say off eBay the norm, but I do recall what I paid for the long one ( 18.oo dollars) you can find them all over eBay..

http://stores.ebay.com/Super-Carbide-Tools
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#16 ·
Ebay has also been a pretty good source for me. You have to be careful though, sometimes you get the bear, sometimes the bear gets you. I managed to pick up an Amana RC1084 (3/4" 2 flute straight plunge w/replaceable cutters) for $15+5. Shows up elsewhere for about $95. But on the other hand I've picked up some stuff I wish I hadn't also.
Been trying to keep an eye out for a 7/16 spiral that didn't want my first born. Lee Valley has them for $110 :nono:
Anyway, Cripe has been a pretty good supplier for me. Router bits as well as other things. I order some painting supplies from them last summer also.:wacko: