Chipped router bit

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Forum topic by Wiley posted 02-24-2010 08:09 PM 1627 views 0 times favorited 5 replies Add to Favorites Watch
View Wiley's profile


71 posts in 3029 days

02-24-2010 08:09 PM

Topic tags/keywords: question router

I have yet another router bit problem, and I’m afraid I can’t blame this one on the evil workshop gremlins. The router did not want to give the bit back last night when I was trying to change the bit, and somewhere in the course of getting it out I seem to have taken a small chip out of it. It’s a two-flute straight bit and the chip is at the very top of one of the flutes. I’m heading to Rockler this afternoon anyway so I’ll pick up a new one anyway, but I have two or three more cuts I needed to do before I do a bunch of gluing, and I was really hoping to glue everything up before I left for Rockler. Is it safe to use the chipped bit? Obviously my project schedule is not worth getting pelted by carbide shrapnel if a chip makes the bit likely to shatter or anything.

-- "When you lose the power to laugh, you lose the power to think straight" - Inherit the Wind

5 replies so far

View surfin2's profile


51276 posts in 3134 days

#1 posted 02-24-2010 09:02 PM

I’ve done it before with no problems… It spins fast enough so the other flute will make up for the bad one, sorta like a single flute where its chipped. Try it on a piece of scrape and see for your self if its good enough…

-- Rick

View knotscott's profile


8013 posts in 3373 days

#2 posted 02-24-2010 11:41 PM

Bring the bit with you and show it the Rockler folks….they might replace it for free. I’ve chipped a few over the years, but it’s rare. Just for comparison purposes, I think it’s wise to try another quality brand to see if it’s the bits are the operator.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View Ingjr's profile


144 posts in 3014 days

#3 posted 02-25-2010 04:24 AM

Keep it/toss it. Hard decision to make. If it were me and I was needing to finish up tonight I’d use it. Don’t forget the safety glasses or face shield would be better. I hesitate to recommend any one else use a broken bit though. Me, I’d use it.

-- The older I get the faster I was.

View Glen Peterson's profile

Glen Peterson

556 posts in 3054 days

#4 posted 02-26-2010 04:55 AM

I’d use it with the thought that the unchipped cutter will clean away any uncut portion due to the chip. I bet you can get a new one from Rockler too.

-- Glen

View jayjay's profile


639 posts in 3044 days

#5 posted 02-26-2010 05:43 AM

Depending on how bad the chip is, it may be able to be resharpened with a diamond wheel. However, resharpening will change the nominal diameter of the cutter. If you know someone with a precision grinder, who would be willing to regrind it, it might be worth your while, but it not, it would probably cost you more to have it resharpened than it’s worth. As far as safety is concerned, a chip on the corner or edge should be fine to continue using, but the finish on the wood will suffer a bit, if the carbide is noticeably shattered, toss it.

-- ~Jason~ , Albuquerque NM

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