Spiral Flute Tap Thread Size 1/4 In.-28 UNF Overall Length 2 1/2 in High Speed Steel Black Oxide Thread Length 1 in 75 Percent Thread Drill Size 5.45mm Thread Limit H11 Class of Fit 1B Thread Direction Right Hand Number of Flutes 3MRO449T28
| # | Attribute | Value |
|---|---|---|
| 1. | brand | GREENFIELD THREADING |

