Maybe somebody here knows the answer. I have several CMT spriral cut router bits that the catolog calls “solid carbide” but a magnet will stick to the bit. Is there iron in the carbide or what are they really made of? Also can you have these bits sharpend when dull as they are a bit (pardon the pun) pricy. I have been very pleased with the quality of the cuts but just wondering.
Troy
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Replies
Only the actual cutter tip is "solid carbide". They can be resharpened a few times before their geometry is widdled down. Unlike a plane, the router bit tip can not (easily) be moved to compensate for the metal loss after sharpening.
Thanks' kind of funny that they don't call conventional router bits "solid carbide" The spiral bits look like a monolithic piece of material that was why I was surprised that a magnet stuck to the bit.Troy
Troy, a magnet will stick to solid carbide, although the attraction may not be quite as strong as steel. You may want to check with your local sharpening service to see if they can sharpen them. If they can't contact CMT to see if they offer that service.
Thanks
Troy
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