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30th April 2012, 04:06 PM #1Senior Member
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Safety concern - cheap router bits
A friend said he wouldn't trust the cheap Chinese router bits for fear of them exploding and sending bits everywhere.
I just ordered two cheap 3" rounding over bits from Hong Kong to round over the sides of my new speaker cabinets once they are finished. Beyond my cabinets I don't see a reason to ever use them again. To buy the same thing here in a better quality is like $100 a bit dearer.
Would you be inclined to trust them for such limited use?
Also thinking I would purchase some cheap large cove router bits, I need to make some round ports and I was thinking of doing two semi circles, that would form a full circle once glued together.
The port is going to be about 12" long so that counts out just routing a circle.
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30th April 2012, 04:14 PM #2
I guess a good question is "Has anyone had a cheap router bit explode"?
Maybe its an urban myth.
There are lots of 'A friend of a mate had a father in law who had a boss that died from....."
I've never had my cheap ones come apart, explode or fail in any way.
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30th April 2012, 04:23 PM #3
I bought dozens of cheap bits during a closing down sale a while ago, paid about $3 per bit. No failures so far and they have done some cutting. If in doubt just make sure you think about where the bit will go if it gets loose or disintegrates (which is just about everywhere, at high speed). Safety glasses for sure with a solid shop apron and a full face shield may keep you in your comfort zone.
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30th April 2012, 04:29 PM #4
Just remember that bits as big as you're talking about will have to be used at a pretty low speed any way.
RegardsHugh
Enough is enough, more than enough is too much.
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30th April 2012, 05:52 PM #5Senior Member
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Thanks guys keen to hear about any other success or failure stories to gauge level of danger.
The router I have goes down to 9000rpm is that slow enough?
Might keep an eye out for a good apron as I need one from time to time when grinding.
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2nd May 2012, 08:14 AM #6
Now I buy all cheap router bit and keep the name brands ones for special jobs. I have never seen a router bit expensive or cheap explode. Had one that i dropped on concrete and a couple of small pieces of carbide flew off that. The difference between the name brands and the cheapies is as near as I can find out is thinner carbide and sometimes a lower quality carbide. I get mine my cheapies from Super Carbide Tools and have never had a problem with them.
Regards
HaroldLearn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.
Albert Einstein
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2nd May 2012, 09:52 AM #7
I've had a couple of heads break off some fragile looking 1/4" contour bits that you can buy in box lots for a few dollars, when ploughing into brushbox, but I think a 3" roundover would be on a more substantial 1/2" shank and you will be doing edges that can be nibbled away in a few lighter passes.
I never did find the head of one bit but the other one bounced off my jeans and didn't penetrate or otherwise do damage. Don't skimp on safety gear. My problem is the safety glasses always seem to fog up when I have the dust mask on as well.
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2nd May 2012, 10:20 AM #8GOLD MEMBER
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If your safety goggles fog up, gently wipe the insides with a thin film of baby shampoo.
The soap/detergent will collapse the little water droplets.
Test on the bathroom mirror = write something for anyone who takes too long and uses too much hot water.
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2nd May 2012, 01:59 PM #9Senior Member
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Thanks for the feed back guys I think I will go ahead with using them and just keep an eye on them for signs of fatigue.
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8th May 2012, 07:38 PM #10Senior Member
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Just received three of the cheap cutters from overseas (quicker than expected)... the cutting area is covered in wax showing some thought went into the product. From a totally uneducated buyers perspective.. they look ok. Guess time will tell.
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