- #21 (.1590) HSS Blue Steel Left Spiral+ Right Cut Straight Threaded Shank (1/4-28) Reamer - 2" OAL from Thread Seat to Tip
| Material | HSS Blue Steel |
| Size Type | Wire |
| Reamer Size | #21 |
| Overall Length | 2 in |
| Shank Type | Threaded Shank |
| Reamer Style | Left Spiral, Right Cut Reamer |
| Weight | 0.02 LB |

