There are 2 drawings for part at9112 available in AirCorps Library

Manufacturer's Drawing

Packard,   Packard V-1650 Merlin Drawings,   Page: 1,   Revision: bb  

KIT, VALVE SEAT GRINDING "BLACK & DECKER" CODE #493 ELEC. POWER DRIVEN 200-250 VOLT "3/8 DIA. PILOT"

Associated Aircraft:   V-1650  

Manufacturer's Drawing

Packard,   Packard V-1650 Merlin Drawings,   Page: 1,   Revision: h  

KIT, VALVE SEAT GRINDING "BLACK & DECKER" CODE #493 ELEC. POWER DRIVEN 200-250 VOLT "3/8 DIA. PILOT"

Associated Aircraft:   V-1650