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National Stock Number:
5133-00-243-2303
Federal Supply Class:
5133
National Item Identification Number:
002432303
Description:
COUNTERSINK
Detail:
AN ANGULAR CUTTING TOOL, USUALLY MADE WITH ANGULAR RELIEF, HAVING ONE OR MORE FLUTES WITH SPECIFIC SIZE ANGLE CUTTING EDGES. IT IS USED FOR CHAMFERING AND COUNTERSINKING HOLES. THE TOOL MAY HAVE A STRAIGHT SHANK, TAPERED SHANK, BIT STOCK SHANK OR SPECIAL SHANK REQUIRING A SPECIAL HOLDER, FOR HOLDING IN A POWER- OR HAND-OPERATED MACHINE. IT MAY BE DESIGNED TO BE DRIVEN OR TURNED BY MEANS OF A WRENCH OR CARPENTER'S BRACE. FOR ITEMS REQUIRING A HOLDER BUT THE HOLDER IS NOT INCLUDED, USE CUTTER, COUNTERSINK.
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Manufacturer Information:
| MIL-H-4081 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-H-4081 CL1SZD | 80244 | GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE |
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Techincal Specification:
| BODY DIAMETER | 0.437 INCHES NOMINAL | | CUTTING END STYLE | STRAIGHT FLUTE BLUNT END | | CUTTING ROTATION DIRECTION | RIGHT-HAND | | FEATURES PROVIDED | INTEGRAL PILOT | | FLUTE QUANTITY | 2 | | HARDNESS RATING | 60.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM | | INCLUDED ANGLE | 110.0 DEGREES NOMINAL | | OVERALL LENGTH | 1.406 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | NONDEFINITIVE SPEC/STD DATA | 1 CLASS AND D SIZE | | PILOT DIAMETER | 0.187 INCHES NOMINAL | | POINT DIAMETER | 0.187 INCHES NOMINAL | | SHANK STYLE | STANDARD TAPER-ROUND | | TAPER SHANK SIZE DESIGNATOR | 2 JARNO |
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