| Description | Part Number |
| Back Swept Injector Knives |
| 13" back swept knife hardfaced | N13H |
| 13" back swept knife with liquid tube plain | N13TP |
| 13" back swept knife with liquid tube and hardfaced | N13TH |
| 13" back swept knife with chrome cutting edge | N13C |
| 13" back swept knife with liquid tube and chrome cutting edge | N13TC |
| 13" back swept knife with liquid tube and chrome cutting edge and chrome tube protector | N13TCC |
| 13" back swept knife with 2" fert. tube plain | N13DTP |
| 13" back swept knife with 2" fert. tube hardfaced | N13DTH |
| 13" back swept knife with 2" fert. tube and chrome cutting edge | N13DTC |
| 13" back swept knife with 1 1/4" Timik tube plain | N131DTP |
| 13" back swept knife with 1 1/4" Timik tube hardfaced | N11DTH |
| 13" back swept knife with 1 1/4" Timik tube and chrome cutting edge | N131DTC |
| Description | Part Number |
| 17" back swept knife plain | N17P |
| 17" back swept knife hardfaced | N17H |
| 17" back swept knife with liquid tube | N17TP |
| 17" back swept knife with liquid tube and hardfaced | N17TH |
| 17" back swept knife with chrome cutting edge | N17C |
| 17" back swept knife with liquid tube and chrome cutting edge | N17TC |
| 17" back swept knife with liquid tube and chrome cutting edge and chrome tube protector | N17TCC |
|
| 19" back swept knife plain | N19P |
| 19" back swept knife hardfaced | N19H |
| 19" back swept knife with liquid tube | N19TP |
| 19" back swept knife with liquid tube and hardfaced | N19TH |
|
| N13, N17 and N17 knives are forged for the longest possible wear. |