4-3/16" CHUCK ADAPTER PLATE FOR 2-3/4"- 8 SPINDLE
REMOVED FROM A MODEL 500 JACOBS RUBBERFLEX COLLET CHUCK
PART #AD50-86
4.1875" LARGEST DIA. 2-1/2" THICK
(6) 5/16"-24 TAPPED HOLES ON 2-13/16" DIA. BOLT CIRCLE.
THIS ADAPTER PLATE IS USED, BUT APPEARS TO BE IN VERY GOOD CONDITION