🔍 Yes, SpeTool provides replacement carbide inserts for their insert-style bits. In the SpeTool catalog, there is a section for **Router Bit Accessories/Insert Blades**, which includes solid carbide replacement knives:contentReference[oaicite:18]{index=18}. So if your surfacing bit uses, say, 15mm square inserts or a specific size, you can purchase those blades from SpeTool. This way, you can keep your surfacing cutter going indefinitely by swapping in fresh knives when needed. Always make sure to get the correct insert size/type that matches your bit (the product page or manual will usually specify the knife dimensions or part number).

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