🔍 In almost all cases, yes – **spiral bits cut cleaner and more efficiently** than straight-flute bits. The spiral geometry means the bit is shearing the wood fibers continuously at an angle, rather than chopping straight down. This yields smoother cuts with less tearing. Additionally, the flutes of a spiral bit act like an auger, actively pulling chips out of the cut, which helps prevent clogging and burning:contentReference[oaicite:9]{index=9}. Straight bits have trouble clearing chips, which can cause heat buildup and roughness. The only advantage of straight bits might be cost, but for quality of cut, spiral bits (up-cut, down-cut, or compression) are generally the superior choice for woodworking.

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