Diamond Bits Versus Carbide Bits
From contributor S:
The diamond bits are made for production cutting at high feed rates. If you're looking for quality cutting, diamond is not the answer, because there will be occasional chipping.
From contributor J:
The diamond bits that I've used have slower recommended feed rates than the carbide bits. But yes, they are not as sharp as carbide bits.
From contributor K:
Diamond bits will not achieve the speed that carbide can, that is a fact. They do last a lot longer in most cases, but on some materials they don't perform that well. In my experience the diamond profile cutters have done very well, but the compression, up and down style has not. The loss of speed and cost to replace or sharpen has not been cost effective. The time it takes to replace or sharpen diamond is too long unless you know what you need and when you need it well in advance.
From contributor G:
PCD tools are great for MDF doors. With diamond, the initial costs are greater, but after 1-2 services is where the pricing lowers. You have not mentioned the quantity of doors you produce, but if it's over 100 per week, PCD should be the choice. We [Courmatt] do provide a cost evaluation between TCT, Insert and PCD, which should assist you making a choice. Feed speeds would not change, but may actually be higher with PCD, depending on your profile. The only time we suggest using a a compression PCD is only if your parts are small or feed speeds are not over 200 IPM.
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