ABSTRACT

FIGURE9Hand-operatedtoolssuchasthisSensorIwrencharealsoavailablewitha built-inyield-tighteningprogram.Thisenablestheusertotightenboltsofanysize andgradetoyieldwithoutcomplexadjustments.Toolscomeinfoursizescovering 10-1000Nm.(PhotocourtesyofIngersoll-RandCo.,ToolandHoistDivision.)

theratchetingcycle,whichpermitstheoperatortotightenthefastenerinanormalmanner.A well-knowntoolforthispurposeisshowninFigure9.Itiswidelyusedforexperimental tighteninginthelaboratoryenvironment,intestingfasteners,intorqueaudit,andinthereassemblyofequipmentoriginallyassembledbyyieldtightening.