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National Stock Number:
5133-01-194-5768
Federal Supply Class:
5133
National Item Identification Number:
011945768
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:
| SR43D | 83323 | THIOKOL-RMD/I-80 PROPERTIES |
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Techincal Specification:
| CUTTING END STYLE | STEP DRILL | | NOMINAL CUTTING DIAMETER | 0.4670 INCHES AND | | 0.4680 INCHES | | CUTTING ROTATION DIRECTION | LEFT-HAND | | POINT TYPE | CONVENTIONAL | | POINT ANGLE | 43.0 DEGREES NOMINAL AND | | 47.0 DEGREES MAXIMUM | | FLUTE QUANTITY | 2 | | OVERALL LENGTH | 3.740 INCHES MINIMUM AND | | 4.150 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | PLASTIC OVERALL | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND | | 64.0 ROCKWELL C MAXIMUM | | SMALL FLUTED SECTION LENGTH | 0.920 INCHES MINIMUM AND | | 0.950 INCHES MAXIMUM | | SHANK STYLE | STRAIGHT ROUND | | SHANK DIAMETER | 0.499 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM |
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