Coarse Knife Section 
9 Serration Per Inch (2-1/16" Centers)
Aftermarket course sickle section (2-1/16") hole spacing, 9 serrations per inch knife to suit early model Case-IH cutting platforms.This high wear double heat treated course knife section has 2-1/16" hole spacings with a course top seration, allowing for better cut and longer life.  Measures 3.250" wide the centre hole allows for head and strap location.
Part numbers
- 112074A1, 217-113, 217113, 231-271, 231271 
 
| Series | 
Models | 
Serial/Year | 
| Case 10 Series | 
1010, 1020 | 
 | 
| Case 20 Series | 
2020 | 
 | 
Features
- Coarse 9 SPI
 
- Heat treated
 
- 2-1/16" hole spacing
 
- 3 holes