Hardness 40~45 HRC
| Yeahparts No. | OEM # | Brands | Material | Weight | Length | Width | Thickness | Cennter Hole | Outside Hole | Type | Number blades in pack |
| BL-74205056 | 942-05056A 742-05056 742-05056A | MTD Cub Cadet Troy-Bilt | 40MnB Steel | 0.9912 | 18-5/8″ | 2-1/2″ | 0.158” | 6 point star (3″) | 13/32″ | Mulching blade | 3 |