New Old Stock Left Hand Twist Chisel Point.
4" Inch Wide X 1/2" Inch Thick X 20" Inch Long.
Left Hand Twist. 1/2" Inch Bolt Size.
Each set of mounting holes are 2 1/4 inch apart (center of hole to center of hole).
Chisel point part numbers: S0S06, H6137.
Made by Herschel.