Spiral Flute Tap Thread Size 1/4 In.-28 UNF Overall Length 3 1/8 in High Speed Steel VAP Thread Length 3/8 in 75 Percent Thread Drill Size 5.45mm Thread Limit H3 H4 Thread Direction Right Hand Number of Flutes 3MRO428P55
| # | Attribute | Value |
|---|---|---|
| 1. | brand | WALTER PROTOTYP |

