🔍 shank bit make a difference?,"SpeTool offers spiral bits primarily in **1/4-inch and 1/2-inch shank** sizes (as well as smaller 1/8"" shanks for tiny bits). The shank size needed depends on your router’s collet and the bit’s diameter/length. **1/2"" shank bits** tend to be more rigid, which can reduce vibration and produce a smoother cut, especially for larger diameter or longer bits. If your router can accept 1/2"" shanks, using them for heavy cutting or deep slots is a good idea. However, 1/4"" shank bits are very common and are suitable for the majority of jobs (most SpeTool bits up to about 1/4"" cutting diameter use a 1/4"" shank). In summary, use 1/2"" shank when you need extra stability or are using a large bit, and 1/4"" shank for compatibility with smaller routers or for smaller diameter bits.

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