90092750024324821AMERICANSTANDARDCircularandDovetailedFormingToolBlanksASA85.74954ANDASSOCIATEMOUNTINGANDCLAMPINGELEMENTSFORMetalCuttingToolInstituteSocietyofAutomotiveEngineersNationalMachineToolBuilders’AssociationTheAmericanSocietyofMechanicalEngineersTHEAMERICANSOCIETYOFMECHANICALENGINEERS29West39thStreet,NewYork18,N.YCopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=UniversityofAlberta/5966844001,User=trert,rtyrtyrtyNotforResale,03/07/201523:49:18MSTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,````,``,`,,`,,`,`,```,`,,,,`-`-`,,`,,`,`,,`---rn90092750024325768rnForewordTHEneedforinterchangeabilityofcircularanddovetailtoolsmadeforuseonthevariousmakesofscrewmachinesledSectionalCommitteeB5ontheStandardizationofSmallToolsandMachineToolElementstoappointTechnicalCommitteeNo.10toprepareastandardcoveringCircularandDovetailToolBlanksandTheirHolders.Becauseindividualscrewmachinemanufacturershadbeenestablishingtheirownsizesofblanksandholders,toolscouldonlybeusedinthemachinesforwhichtheyweredesignedwithoutincurringadditionalexpense,anditwastoeliminatethisundesirableanduneconomicalconditionthatauniformstandardfortheholdersandtheblanksbecamenecessary.FollowingtheorganizationmeetingofthenewtechnicalcommitteeinMarch,1931,thecommitteepreparedthreepreliminarydrafts.InNovember,1933,itdistributedadrafttoaselectedlistofmorethanonehundredconcerns.Subse-quentchangesweremadeandasectiononnomenclature,preparedincollaborationwiththeNomenclatureCommittee,wasadded.ThisproposedAmericanStandardwasaprovedanddesignatedasanAmericanStandardinNovember,1936.FolPowingthepublicationofthestandardin1936,TechnicalCommitteeNo.10decidedtoincludestandardsfortheholdingelements.TherevisionwasfinallyapprovedanddesignatedasanAmericanStandardinOctober,1943.AttheNovember,1944,meetingofTechnicalCommitteeNo.10itwasfeltthatthestandardwasnotsatisfactoryforheavywork.Itwasvotedtoreviseitandtoeliminatecertainsizesandtoaddothers.Theproposedreviseddraft,datedJuly,1947,wassubmittedtothe...
