Metallic or non- metallic?

Having considered hardness, specific gravity, and abrasive particle size, the next key decision is wether to use a metallic or non- metallic abrasive. This decision is often determined by the substrate, particularly its location, size, and material with which it is made. Following are a summary of the primary metallic and non-metallic abrasives and suggestions about where they should be used or not used.

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