Part Number
Part Number:
NSN:
NIIN:
Item Name:
COUNTERBORE , MACHINE
Definition:
AN END CUTTING TOOL HAVING TWO OR MORE CUTTING EDGES WITH FLUTES OR GROOVES FOR THE PASSAGE OF CUTTINGS, AN INTEGRAL OR REMOVABLE HOLDER DESIGNED FOR ADAPTION TO THE END OF A MACHINE SPINDLE. THE FLUTES OR GROOVES ARE USUALLY HELICAL TO GIVE A POSITIVE RAKE AT THE CUTTING EDGES. IT IS DESIGNED TO FORM A FLAT-BOTTOMED ENLARGEMENT OF THE MOUTH OF A PREVIOUSLY FORMED CYLINDRICAL HOLE. FOR ITEMS REQUIRING A HOLDER BUT THE HOLDER IS NOT INCLUDED, USE CUTTER, COUNTERBORE.
CAGE Information
Code | Company |
---|---|
1NEX4 | KENNAMETAL INC. DIV KENNAMETAL INDUS |
Federal Supply Class
Title
DRILL BITS, COUNTERBORES, AND CO
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
AKZL | NOMINAL CUTTING DIAMETER | 0.9375 INCHES |
ALAR | FLUTE QUANTITY | 3 |
AAJF | THREAD DIRECTION | RIGHT-HAND |
MATT | MATERIAL | STEEL OVERALL |
CBBL | FEATURES PROVIDED | REPLACEABLE PILOT |
AKZQ | PILOT HOLE NOMINAL DIAMETER | 0.250 INCHES |
AAZF | SHANK STYLE | STANDARD TAPER W/TANG |
AKZH | CUTTING END STYLE | INTERCHANGEABLE PILOT |
ABHP | OVERALL LENGTH | 6.125 INCHES NOMINAL |
AAVL | PILOT DIAMETER | 0.312 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |