GSA A-A-2322 A-2003 FILE HAND (AMERICAN PATTERN) THREE SQUARE《三角手锉(美式)》.pdf
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1、I INCH-POUND IA-A-2322AMay 30,2003SUPERSEDINGA-A-2322September 27, 1985 COMMERCIAL ITEM DESCRIPTIONFILE, HAND (AMERICAN PATTERN), THREE SQUAREThe General Services Administration has authorized the use of this commercial item descriptionby all federal agencies.1. SCOPE. This commercial item descripti
2、on covers hand files used for tiling internal angles, clearingout comers, and for filing taps and cutters in the annealed state.2. CLASSIFICATION.Type I Bastard-cutType II Second-cutType III Smooth-cuta71 3. SALIENT CHARACTERISTICS.3.1 Desirer. The file shall be tapered on all sides at least one-thi
3、rd (1/3) of the length to the point.Double-cut on each surface (two sets of parallel cuts on the surface, one set crossing the other), Sides atany point on the file shall be of equal width. Edges set (blunted), then double-cut. No portion shallextend outside of the area of the largest cross-section
4、of the tile. The file shall be furnished in three (3)types and assorted sizes as shown in section 3.2,Figure 1RegularIBeneficial comments, recommendations, additions, deletions, clarifications, etc. and any other datawhich may improve this document should be sent to: General Services Administration,
5、 Federal Ia711Supply Service, Hardware SuperStore (6FEE), 1500 E. Bannister Rd Bldg. #6, Kansas City,Missouri 64131.FSC5110Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-2322A3.2 Dimensions.Dimensions at largest Number of teeth per inch surfaceL
6、ength section A Min MaxInches Inch6 1/28 5/810 3/46 1/28 5/810 3146 1128 5/810 3/4Bastard-cut332522Second-cut433631Smooth-cut554439372925494135614944Length dimension: Measured from the point (free or front end) to the heel (junction of the tang with thebody of the file) and have a tolerance of 1/8 i
7、nch,.0Tolerance: Width (A) - +1/16 inch3.3 Material. The file shall be of a carbon alloy steel3.4 Shall be of a conventional shape and size suitable for attachment to a wood handle.Tempered to a maximum hardness of 45 on the Rockwell C scale when tested per ASTM El 8, ,It shallbe measured at a point
8、 approximately midway of its length and width.3.5 = Shall be uniformly cut or etched and of uniform height throughout the fully cut portion.Cutting surfaces shall be hardened to a uniform hardness. The distance between the heel and point ofthe file, excluding the tang, shall be hardened to not great
9、er than 68 nor less than 64 on the Rockwell Cscale when tested per ASTM E 18. The tile shall be free from decarburization and brittleness.3.6 Marking. The file shall be marked with the name of the manufacturer or with a trademark of suchknown character that the source of manufacture maybe readily de
10、termined.3.7 Workmanship. The teeth of the file shall be well-defined, sharp, and uniform in height and form.There shall be no evidence of rust or other defect which may impair serviceability, durability orappearance.4. REGULATORY REQUIREMENTS2Provided by IHSNot for ResaleNo reproduction or networki
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