5955-01-370-3548 CRYSTAL UNIT,QUARTZ Index 3820-01-370-3550 BIT,ROCK DRILL

National Stock Number:
3820-01-370-3549

Federal Supply Class:
3820

National Item Identification Number:
013703549

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.


Manufacturer Information:
SCD-05252519KEPRO CIRCUIT SYSTEMS INC.


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