5133-00-253-5478 COUNTERSINK Index 3130-00-253-5482 BEARING UNIT,BALL

National Stock Number:
5133-00-253-5479

Federal Supply Class:
5133

National Item Identification Number:
002535479

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.


Manufacturer Information:
GGG-C-61381348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
GGG-C-613 TY4CLA80244GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE


Techincal Specification:
BODY DIAMETER0.250 INCHES NOMINAL
CUTTING END STYLESTRAIGHT FLUTE POINT END
CUTTING ROTATION DIRECTIONRIGHT-HAND
FLUTE QUANTITY3
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
INCLUDED ANGLE78.0 DEGREES NOMINAL
MATERIALSTEEL OVERALL
NONDEFINITIVE SPEC/STD DATA4 TYPE AND A CLASS
OVERALL LENGTH1.4375 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM
SHANK DIAMETER0.187 INCHES NOMINAL
SHANK STYLESTRAIGHT ROUND


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