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This part of ISO 11148 specifies safety requirements for hand-held non-electric power tools (hereinafter “nibblers and shears”) with a reciprocating movement for nibbling and shearing. The nibblers and shears can be powered by compressed air or hydraulic fluid and are intended to be used by one operator and supported by the operator's hand or hands, with or without a suspension, e.g. a balancer. NOTE 1 At the time of publication, no nibblers and shears driven by internal combustion engines are known. Once these are identified, it is intended to amend this part of ISO 11148 to include such power tools. This part of ISO 11148 is applicable to: - nibblers; - shears. NOTE 2 For examples of nibblers and shears, see Annex B. This part of ISO 11148 is not applicable to special requirements and modifications of nibblers and shears for the purpose of mounting them in a fixture.This part of ISO 11148 deals with all significant hazards, hazardous situations or hazardous events relevant to nibblers and shears when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer, with the exception of the use of nibblers and shears in potentially explosive atmospheres. NOTE 3 EN 13463-1 gives requirements for non-electrical equipment for potentially explosive atmospheres.