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Dewalt: Hole Saws vs. Sellf-feed Bits vs. Spade Bits


Steven

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Self-feed & spade bits do appear to drill faster than a hole saw.  Hole saw seems to burn through the wood instead of cut it.   Why use self-feed bits instead of hole saws or spade bits?  I would think the hole saws would give a cleaner cut.  What would be the positives and negatives of each?

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  • 2 weeks later...

Spade bits and self-feed bits are great for times when you need to drill something deep quickly. 2x4, 4x4, or deep posts like utility posts. The problem is, spade and self-feed bits tend to break-through and leave a bad finish on the exit side, more-so than hole-saws. If I were drilling sheet goods, I would reach for a hole saw. Also, hole saws are multi-material. Sheetrock, metal, wood, plastic, etc. Spade and self-feed - best to stick with wood most of the time.

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