What accessories are prohibited from use with this miter saw?
Prohibited accessories include shaper cutters, dado sets, and abrasive wheels. You should never modify the tool or create unauthorized accessories, as doing so risks serious injury. Only use accessories recommended by Sears for this miter saw, available at your local Sears Hardware Department or through the Sears Power and Hand Tool Catalog. (Page 2)
From the official Craftsman 137.212290 Miter Saw manual, page 2
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