"DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY: FIRST END, 0.9575 IN. NOMINAL; SECOND END, 1.250 IN. NOMINAL; FURNISHED ITEMS: 2 SETSCREWS; 1 KEYING FACILITY PROVIDED BOTH ENDS; KEYING FACILITY WIDTH: FIRST END, 0.375 IN. NOMINAL; SECOND END, 0.500 IN. NOMINAL"