A taper dresser is a type of grinding-wheel dressing tool used to restore, true, or profile the surface of an abrasive grinding wheel (or wheel pack) by means of a conical/tapered or angular diamond or CBN-bonded element. The term "taper" in this context refers to the conical/truncated-cone shape of the dresser’s contact surface which matches, trims or forms a matching taper/angle in the wheel or removes material to keep the wheel shape correct. For example, one manufacturer describes a “Tapered Dresser take advantage of the extremely high hardness of diamonds for general sharpening, trimming, shaping and thinning of … grinding wheels.” In operation, the taper dresser is held (manually or mounted) against the rotating grinding wheel, cutting away worn abrasive grains, exposing fresh cutting surface, restoring the shape (taper) and/or generating a specific form (angle, profile) so that the wheel performs optimally. In the “How to choose…” guide, taper dressers are listed under the category of form-dressing tools used for precision profile grinding. In short: you use a taper dresser to keep your grinding wheel in top shape: correct form, correct angle, proper sharpness, minimal loading, consistent performance.

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