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Originally Posted by petersenj20 It makes sense to me that a small bit spins faster making a cleaner cut. Will spiral mills work as planer bits? I bought one today (1/4") for mortising and haven't had the chance to play with it yet. Woodsmith #67 says "If I were to buy just one bit, it would be a 1/4" -dia. solid carbide end mill" So I did and it only cost 8 bucks. |
I believe the larger diameter bit equals faster speed at a given RPM because the outside edge(where the cutters are) has to travel further in the same amount of time as the inside of the bit...this is why you want to turn your speed down when using 2-3 inch bits, for whatever that's worth.
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