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National Stock Number:
3820-01-343-1825
Federal Supply Class:
3820
National Item Identification Number:
013431825
Description:
BIT,ROCK DRILL
Detail:
A DETACHABLE, END CUTTING DRILLING TOOL WITH AN INTERNAL THREAD OR TAPERED SOCKET AT ONE END FOR ATTACHING A ROCK DRILL ROD. THE OPPOSITE END IS DESIGNED WITH TWO OR MORE CUTTING EDGES FOR DRILLING INTO ROCK FORMATION BY IMPACT AND A SLIGHT ROTARY MOTION. IT CONTAINS A HOLE OR HOLES IN THE CUTTING FOR THE PURPOSE OF CONDUCTING AIR OR WATER TO CLEAR THE HOLE BEING DRILLED. IT IS USED WITH POWERED DRIFTER DRILLS, SINKER DRILLS, AND THE LIKE.
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Manufacturer Information:
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Techincal Specification:
| DRILLED HOLE DIAMETER | 6.0000 INCHES | | ATTACHMENT METHOD | THREADED BOTTOM DRIVE | | CLEANING HOLE LOCATION AND QUANTITY | 1 SIDE | | CUTTING END TYPE | ANY ACCEPTABLE | | SPECIAL FEATURES | COMPRESSIVE STRENGTH 3000 TO 6000 PSI;DRILLING SPEED 50 TO 100 RPMS |
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