National Stock Number:
5133-14-302-5116
Federal Supply Class:
5133
National Item Identification Number:
143025116
Description:
COUNTERBORE,HAND
Detail:
AN END CUTTING TOOL FOR FORMING A FLAT BOTTOMED ENLARGEMENT OF THE MOUTH OF A PREVIOUSLY FORMED CYLINDRICAL HOLE. IT MAY HAVE AN INTEGRAL OR INSERTED PILOT. DESIGNED TO BE DRIVEN OR TURNED BY A WRENCH, CARPENTER'S BRACE OR HANDLE. FOR POWER DRIVEN ITEMS, SEE COUNTERBORE, MACHINE.
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