1、ScrewdriversAN AMERICAN NATIONAL STANDARDASME B107.600-2008(Incorporation of ASME B107.15, B107.26, B107.30, and B107.31)ASME B107.600-2008(Incorporation of ASME B107.15, B107.26, B107.30, and B107.31)ScrewdriversAN AMERICAN NATIONAL STANDARDDate of Issuance: November 26, 2008This Standard will be r
2、evised when the Society approves the issuance of a new edition. There willbe no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisdocument. Interpretations are published on the ASME Web site under the Committee Pages athttp
3、:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard wa
4、s balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and
5、the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document, and does not undertake to insur
6、e anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely thei
7、r own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with th
8、e establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical Eng
9、ineersThree Park Avenue, New York, NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . vCorrespondence With the B107 Committee . viASME B107.15 Flat Tip Screwdrivers 1ASME B107.26 Screwdriver Bits, Hand D
10、riven . 9ASME B107.30 Cross Tip Screwdrivers 20ASME B107.31 Screwdrivers, Cross Tip Gaging 28iiiFOREWORDThe American National Standards Committee B107 on Screwdrivers was originally under thesponsorship of The American Society of Mechanical Engineers (ASME). It was subsequentlyreorganized as an ASME
11、 Standards Committee, and its title was changed to Hand Tools andAccessories. In 1996, the Committees scope was expanded to include safety considerations.The purpose of B107.600 is to define essential performance and safety requirements specificallyapplicable to the various screwdrivers covered here
12、in. It specifies test methods to evaluate per-formance related to the defined requirements and safety and indicates limitations of safe use.This Standard includes the following:(a) B107.15-2008,FlatTipScrewdrivers,approvedbytheAmericanNationalStandardsInstituteon September 25, 2008(b) B107.26-2007,S
13、crewdriverBits,HandDriven,approvedbytheAmericanNationalStandardsInstitute on December 20, 2007(c) B107.30-2008, Cross Tip Screwdrivers, approved by the American National StandardsInstitute on May 21, 2008(d) B107.31-1997, Screwdrivers, Cross Tip Gaging, approved by the American NationalStandards Ins
14、titute on September 30, 1997In addition to the consolidation of the individual screwdriver standards into this Standard,principal changes are the uniform inclusion of performance requirements and test methods thatevaluate both performance and safety, as well as uniform format for sections on definit
15、ions,references, performance requirements, tests, and safety requirements and limitations of use.Members of the Hand Tools Institute Screwdriver Committee through their knowledge andhard work have been major contributors to the development of the B107 Standards. Their activeefforts in the promotion
16、of these standards are acknowledged and appreciated.The format of this Standard is in accordance with The ASME Codes however, they shouldnot contain proprietary names or information.Requests that are not in this format will be rewritten in this format by the Committee priorto being answered, which m
17、ay inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME Committee or
18、 Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetings. The B107 Standards Committee regularly holds meetings,which are open to the public. Persons wishing to attend any meeting should contact the Se
19、cretaryof the B107 Standards Committee.viASME B107.600-2008 (B107.15)ASME B107.151 Scope. 22 Classification 23 Definitions 24 References 25 Requirements 26 Tests 37 Safety Requirements and Limitations of Use. 7Figures1 Screwdriver Nomenclature 22 Typical Appearances 53 Flat Tip Screwdriver Nomenclat
20、ure at T154 Typical Appearance of a Type II Screwdriver With a Cushion Grip . 55 Typical Torsional Test Block . 66 Bending Moment Test, Typical Setup 8Tables1 Dimensional Characteristics of Flat Tip Screwdriver Blade . 32 Performance Characteristics of Flat Tip Screwdrivers 43 Impact Test Data . 81A
21、SME B107.600-2008 (B107.15)FLAT TIP SCREWDRIVERS1 SCOPEThis Standard covers straight handle-type screwdriv-ers of flat tip design intended for manual operation indriving or removing screws with slotted recesses. Thescrewdrivers are of the types normally used by cabinet-makers, carpenters, sheet meta
22、l workers, productionworkers, mechanics, etc. The intention is to specify per-formance rather than design detail.Inclusion of dimensional data in the Standard is notintended to imply that all of the products describedherein are stock production sizes. Consumers arerequestedtoconsultwithmanufacturers
23、concerninglistsof stock production sizes.Using a screwdriver as a pry bar or striking it with ahammer are clearly misuses of the tool, and nothing inthis Standard shall be interpreted as condoning any toolmisuse. Further information about proper use of screw-drivers is contained in the Guide to Hand
24、 Tools Selection, Safety Tips, Proper Use and Care.2 CLASSIFICATIONFlat tip screwdrivers are classified in the followingtwo types:(a) Type I cabinet, straight sides(b) Type II general purpose, flared sides3 DEFINITIONSassembly: the blade plus the handle.blade: the shank plus the tip.bolster: a chang
25、e in the geometry of the shank at thejunction of the handle.handle: that portion of the screwdriver that is grippedwith the hand.shank: the portion of the blade between the tip and thehandle.tip:theportionofthebladethatengagesthescrewrecess.See Fig. 1 for more information.4 REFERENCESThe following i
26、s a list of publications referenced inthis Standard.ASTM D 2240, Standard Test Method for RubberProperty Durometer Hardness2Fig. 1 Screwdriver NomenclatureShankBolster (design optional)BladeTipHandleASTM E 18, Standard Test Methods for RockwellHardness and Rockwell Superficial Hardness ofMetallic Ma
27、terialsPublisher: American Society for Testing and Materials(ASTMInternational),100BarrHarborDrive,P.O.BoxC700, West Conshohocken, PA 19428-2959Guide to Hand Tools Selection, Safety Tips, ProperUse and CarePublisher: Hand Tools Institute (HTI), 25 NorthBroadway, Tarrytown, NY 10591SAE J1703, Motor V
28、ehicle Brake FluidPublisher: Society of Automotive Engineers (SAE), 400Commonwealth Drive, Warrendale, PA 15096-00015 REQUIREMENTSTheillustrationshereinaredescriptive,notrestrictive,and shall not preclude designs otherwise in accordancewith the requirements of this Standard.5.1 DesignScrewdrivers sh
29、all pass applicable tests in section 6.Conformance with marking and other requirements notdeterminedbyatestshallbeverifiedbyvisualexamina-tion. Screwdrivers shall conform to the dimensional andperformance characteristics specified in Tables 1 and 2.Screwdrivers may be supplied with a bolster.5.1.1 T
30、ype I. Flat tip, straight-sided cabinet screw-drivers are for driving and removing slotted screws (seeFig. 2). The entire length of the blade, excluding thebolster if one is present, shall be capable of entering around hole no larger than the maximum allowable tipwidth dimension plus 0.031 in.ASME B
31、107.600-2008 (B107.15)Table 1 Dimensional Characteristics of Flat Tip Screwdriver BladeNominal DimensionsTip Width, W,at Tip, in. (Ref.)Tip Thickness, T,att1t1,Thickness Width at t1, in. 0.020, in. in.0.011 0.058 0.012 0.001 0.069 0.0060.0153320.016 0.002 0.105 0.0080.020180.022 0.003 0.136 0.0120.0
32、209640.022 0.003 0.155 0.0120.0255320.027 0.004 0.167 0.0160.0303160.033 0.004 0.198 0.0200.0327320.035 0.004 0.230 0.0200.037140.040 0.004 0.261 0.0240.0425160.046 0.004 0.323 0.0280.0465160.050 0.004 0.323 0.0310.050380.055 0.004 0.386 0.0340.060380.066 0.004 0.386 0.0390.0707160.077 0.004 0.448 0
33、.0470.091120.099 0.004 0.511 0.0595.1.2 Type II. Flat tip, flared-sided general purposescrewdrivers are for driving and removing slottedscrews (see Fig. 2).5.2 MaterialsThe materials used in the manufacture of a screw-driver shall be such as to produce products conformingto the requirements of this
34、Standard.5.3 MarkingsScrewdrivers shall be marked in a plain and perma-nent manner with the manufacturers name or with atrademark of such known character that the manufac-turer shall be readily determined. Marking shall be aspermanent as the normal life expectancy of the screw-driver to which it is
35、applied (providing the marked sur-face has not been subjected to a fretting or abradingaction) andbe capableof withstandingthe cleaningpro-cedures normally experienced during its intended use.5.4 Blade5.4.1 General Requirements. Thebladeshallbeheldsecurely in the handle and essentially free from sca
36、le,seams, laps, and cracks, which may adversely affectdurability or serviceability of the tool.5.4.2 Finish. The blade shall be treated in a mannerto resist rust or corrosion. There shall be no evidence ofpeeling or chipping of any coating where applicable.5.4.3 Hardness. The tip portion of the scre
37、wdriversor the entire blade shall be hardened to not less than48 HRC (see para. 6.2).5.4.4 Symmetry. Thetipwidthshallbeperpendicu-lar to the shank axis within 2 deg. The tip thickness3shall be perpendicular to the shank axis within 6 deg.Taper at the tip shall be centered within 5 deg of theshank ax
38、is (see Fig. 3).5.5 Handle5.5.1 General Requirements. The handle shall becapable of withstanding the applicable tests specifiedherein. It shall be suitably finished to provide a comfort-able grip and free from rough edges, sharp corners, ortool marks that affect comfort while using the tool.5.5.2 Cu
39、shion Grip. When furnished with a cushiongrip, the screwdriver will typically resemble that shownin Fig. 4. The grip material shall be capable of meetingthe tests of paras. 6.6 and 6.7 (see section 7 regardinglimitations of use). The durometer hardness shall be amaximum of Shore A 75 (see para. 6.2)
40、. There shall beno detectable slippage between the handle and cushiongrip under normal usage.6 TESTSWARNING: Many tests required herein are inherently hazard-ous, and adequate safeguards for personnel and property shallbe used in conducting such tests.6.1 Hardness TestThe Rockwell hardness test shal
41、l be conducted inaccordance with ASTM E 18. The Shore durometer testshall be conducted in accordance with ASTM D 2240.6.2 Tip Torsional TestThe tip of each sample under test shall be fixtured ina test block of applicable dimensions shown in Table 2and Fig. 5. The test block shall have a hardness of
42、notless than 60 HRC.ASME B107.600-2008 (B107.15)Table 2 Performance Characteristics of Flat Tip ScrewdriversTest Block Slot Torsional TestMinimumNominal Dimensions (see Fig. 5)Minimum Minimum Bendingat Tip, in. (Ref.)Width Depth Assembly, Blade Tip, Moment,Thickness Width 0.0005, in. 0.0028, in. lbf
43、-in. lbf-in. lbf-in.0.011 0.058 0.0140 0.0284 1.2 1.2 None0.0153320.0190 0.0304 2.6 3.5 None0.020180.0260 0.0344 6 9 NoneNote (1)0.0209640.0260 0.0344 8 10 40Note (1)0.0255320.0320 0.0384 13 17 600.0303160.0380 0.0424 25 30 1000.0327320.0400 0.0424 30 39 1750.037140.0450 0.0464 40 58 3500.0425160.05
44、10 0.0504 60 96 700Note (1)0.0465160.0550 0.0534 80 113 700Note (1)0.050380.0600 0.0564 140 165 1,000Note (1)0.060380.0710 0.0614 170 237 1,000Note (1)0.0707160.0820 0.0694 200 376 1,0000.091120.1040 0.0814 225 711 1,000GENERAL NOTES:(a) Formula for calculating torsional test loads for blade tips:L
45、p 145,000 H11547 WT2, where L p torsional test load (lbf-in.), and W and T are dimensionsin inches at t1(see Fig. 3 and Table 1)(b) See Table 1 for W, T, and t1(definitions).(c) Formula for calculating test block slot dimensions (see Fig. 5):Width p (maximum tip thickness at t1+ 0.0010) 0.0005, dept
46、h p (t1+ 0.0224) 0.0028NOTE:(1) When tip thickness and width are not both specified, and more than one row applies, the row withthe more restrictive requirements shall apply.4ASME B107.600-2008 (B107.15)Fig. 2 Typical AppearancesType II General PurposeType I CabinetFig. 3 Flat Tip Screwdriver Nomenc
47、lature at T1t190 deg H110066 deg8 deg nominal taper at tip90 deg H110062 degTip width W at t1Tip thickness T at t1GENERAL NOTE: For tip dimensions at t1, see Table 1.5Fig. 4 Typical Appearance of a Type II ScrewdriverWith a Cushion GripASME B107.600-2008 (B107.15)Fig. 5 Typical Torsional Test BlockD
48、WW H11005 width of slot, in.D H11005 depth of slot, in.0.0196R H11006 0.00100.0050R H11006 0.00106ASME B107.600-2008 (B107.15)When tested to the minimum tip torque value speci-fied in Table 2, neither the shank nor the tip shall showvisible permanent deformation. The torque shall beapplied by forces
49、 acting perpendicular to the long axisof the blade with the tip held securely in the test block.It is permissible to support the blade in a suitable posi-tion for test. The blade shall be restricted from endwisemovement during testing.6.3 Assembly Torsional TestThe test shall be conducted after preheating the entiretool to a uniform temperature of 125F 5F. The torqueshall be applied within 1 min after removing the toolfrom the heating medium. The torque shall be appliedby forces acting at or near the mid
