| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 18.250 IN. OVERALL DIA; 15.312 IN. OD BELOW BOSS ON TOP/BOTTOM; 7.000 IN. WIDE; 2.500 IN. BOSS DIA; BALL HEIGHT 0.750 IN.; 0.875 IN. BALL DIA; EQUIPPED W/ELEC REED VIBRATOR,DIAL REVOLUTION COUNTER,VERNIER INDEX,CARBIDE MICROMETER CONTACT |