Circa: 1900s
Condition: Pre-Owned
Size: Box 3in wide x 8in long
Color: objects are black and silver
Type: 1-set
Country of Origin: US
Manufacturer: Zim
Vintage All Steel Reciprocating and Progressive Valve Grinder in Original Box, it is a tool used for smoothing engine valves to ensure they effectively seal in the valve seat within the cylinder head No.306, price is for everything you see in pictures.