Dentistry. Bore diameters for rotary instruments such as discs and wheels Ingestion-build-73073 BS EN 1991-1-1 gives best-practice

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Dentistry. Bore diameters for rotary instruments such as discs and wheels Ingestion-build-73073 BS EN 1991-1-1 gives best-practice1 Scope This International Standard specifies bore diameters for rotary instruments such as metallic discs and metallic wheels used in dentistry in order to achieve interchangeability between discs and wheels and the mandrels with which the discs and wheels are operated in a dental handpiece.