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National Stock Number:
5133-01-282-0636
Federal Supply Class:
5133
National Item Identification Number:
012820636
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:
| TFIM25.0120-278 | 76301 | THE BOEING COMPANY | | TFIM25.0120278 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| BODY DIAMETER | 0.625 INCHES NOMINAL | | CUTTING END STYLE | STRAIGHT FLUTE BLUNT END | | CUTTING ROTATION DIRECTION | RIGHT-HAND | | FEATURES PROVIDED | INTEGRAL PILOT | | FLUTE QUANTITY | 1 | | HARDNESS RATING | 49.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM | | INCLUDED ANGLE | 90.0 DEGREES NOMINAL | | OVERALL LENGTH | 1.430 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | PILOT DIAMETER | 0.278 INCHES NOMINAL | | POINT DIAMETER | 0.278 INCHES NOMINAL | | SHANK STYLE | EXTERNALLY THREADED | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY | 28 PER INCH |
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