Spiral Flute Tap Thread Size 1/4 In.-28 UNF Overall Length 2 15/32 in HSS-E Black Oxide Thread Length 9/16 in 75 Percent Thread Drill Size 5.45 mm Thread Limit H3 Class of Fit 3B Thread Direction Right Hand Number of Flutes 3MRO13X378
| # | Attribute | Value |
|---|---|---|
| 1. | brand | WIDIA GTD |

