HOLDER, COUNTERSINK TYPE II INTERNAL THREADED SPINDLE MICROMETER COUNTER SINK SHAFT TRAVEL ADJ .2813 TO .3125 .87 IN DIA, 3.1875 IN LENTGH .625 IN MAX DIA OF CUT 1/4 Used in aircraft skin riveting, but can be used in any environment involving rivets, screws, etc. SHANK DIAMETER 0.250 INCHES NOMINAL III DESIGN T
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