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National Stock Number:
5133-00-864-4955
Federal Supply Class:
5133
National Item Identification Number:
008644955
Description:
DRILL,TWIST
Detail:
AN END CUTTING TOOL HAVING TWO OR MORE CUTTING EDGES, AND HAVING HELICAL FLUTES OR GROOVES ADJACENT THERETO FOR THE ADMISSION OF COOLANT AND THE EJECTION OF CUTTINGS OR CHIPS. IT IS USED FOR DRILLING HOLES IN VARIOUS MATERIALS. EXCLUDES DRILL, MASONRY (AS MODIFIED); AND DRILL,TWIST, BONE. SEE ALSO DRILL, PIVOT, JEWELER'S AND DRILL, HARDENED STEEL, CARBIDE TIPPED.
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Manufacturer Information:
| SR25D | 83324 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| CUTTING END STYLE | STEP DRILL | | NOMINAL CUTTING DIAMETER | 0.2810 INCHES AND | | 0.3120 INCHES | | CUTTING ROTATION DIRECTION | RIGHT-HAND | | POINT TYPE | CONVENTIONAL | | POINT ANGLE | 118.0 DEGREES NOMINAL | | FLUTE QUANTITY | 2 | | OVERALL LENGTH | 2.940 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND | | 64.0 ROCKWELL C MAXIMUM | | SMALL FLUTED SECTION LENGTH | 0.611 INCHES NOMINAL | | SHANK STYLE | STRAIGHT ROUND | | SHANK DIAMETER | 0.311 INCHES MINIMUM AND | | 0.312 INCHES MAXIMUM | | SPECIAL FEATURES | 90 DEG INCLUDED ANGLE COUNTERSINK |
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