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The Theory of Rotabroach

Other hole making techniques cut the entire hole into chips. The Rotabroach Annular Cutter hole making concept only cuts the periphery. The innermost portion or "slug" is the "energy saver". We cut less material, make less chips. This translates into less unit horsepower. The larger the cutter, the bigger the power savings achieved.

Rotabroach is Clearly Better.