ASME B107.15:2002 pdf download FLAT TIP SCREWDRIVERS
5 REQUIREMENTS
5.1 General Requirements
The illustrations herein are descriptive, not restrictive,and shall not preclude designs otherwise in accordancewith the requirements of this Standard.
5.1.1 Type L. Flat tip straight sided cabinet screw-drivers are for driving and removing slotted screws.The entire length of the blade shall be capable ofentering a round hole no larger than the maximumallowable tip width dimension plus 0.031 in. (0.79mm). Figure 2 illustrates typical appearances for Class1 plain and Class 4 pocket with the pocket clip optional.
Screwdrivers shall conform to the dimensional andperformance charactcristics specified in Tables 1 and 2.5.1.2 Type I. Flat tip flared sided general purposcscrcwdrivers are for driving and removing slottedscrews. Figure 2 illustrales typical appearances forClass 1 plain，Class 2 bolster， and Class 3 stubby.Screwdrivers shall conform to the dimcnsional andpcrformance charactcristics specified in Tables 1 and 2.5.2 Materials
The materials used in the manufacture of a screw-driver shall be such as to produce products conformingto the performance requirements specified herein.5.3 Markings
Each screwdriver shall be marked in a legible mannerwith the manufacturer’s name or identification.countryof manufacture,and product number.The method ofmarking shall be such that it will remain legible undernormal usage over an extended period.
5.4 Blade
5.4.1 General Requirements. Blades made ofsteel shall be properly heat treated to meet the perforn-ance specified herein.Thc blade shall be held securelyin the handlc.The blade shall be essentially free frorm scale，seams，laps.and cracks，which may adversclyaffect durability or serviceability of the tool.
5.4.2 Finish. The blade shall be treated in a mannerto resist rust or conrosion.There shall be no evidenceof peeling or chipping of any coating whcre applicable.5.4.3 Hardness. The tip portion of the screwdriversor the entire blade shall be hardened to not less than48 HRC (para.6.2).
5.4.4 Symmetry.See Fig. 3.The tip width shallbe perpendicular to the shank axis within 2 deg.Thetip thickness shall be perpendicular to the shank axiswithin 6 dcg.Taper at the tip shall be centered within5 deg of the shank axis.
5.5 HANDLE
5.5.1 General Requirements.The handle shallbe of a material capable of withstanding the applicabletest requirements as specified herein.The handle shallbe suitably finished to provide a comfortable grip. Thehandle shall be free from rough edges,sharp corners,or tool marks that affcct comfort whilc using the tool.5.5.2 Cushion Grip. When specified, the handleshall be furnished with a cushion grip. and the screw-driver shall typically resemble that shown in Fig. 4The grip material shall be capable of mceting the tests
ASME B107.15:2002 pdf download
