Product Description
1 1/2" UNF high speed steel round dies for cutting new external Unified National Fine threads.
These UK made HSS circular dies are suitable for producing fine-pitch external threads on bolts, studs, shafts and engineering components. UNF threads use a 60-degree Unified thread form and are commonly used in automotive, machinery, aerospace and general engineering applications.
- Thread form: UNF / Unified National Fine
- Standard: ASME B1.1
- Material: High speed steel / HSS
- Die type: Circular die / round die
- Die outside diameter: 1 1/2"
- Use: Cutting new external threads
- Thread sizes available: 3/8"-24 UNF through to 3/4"-16 UNF
- Thread direction: Right hand
- UK made high-quality tooling
| Thread Size | TPI | Die Outside Diameter | Thread Form | Material |
|---|---|---|---|---|
| 3/8"-24 UNF | 24 | 1 1/2" | Unified National Fine | High Speed Steel |
| 7/16"-20 UNF | 20 | 1 1/2" | Unified National Fine | High Speed Steel |
| 1/2"-20 UNF | 20 | 1 1/2" | Unified National Fine | High Speed Steel |
| 9/16"-18 UNF | 18 | 1 1/2" | Unified National Fine | High Speed Steel |
| 5/8"-18 UNF | 18 | 1 1/2" | Unified National Fine | High Speed Steel |
| 3/4"-16 UNF | 16 | 1 1/2" | Unified National Fine | High Speed Steel |
For best results, use with a suitable 1 1/2" die stock and thread-cutting lubricant. Start the die square to the workpiece and periodically reverse it slightly to help break and clear the swarf.
Please note: Specifications are intended as a guide only. If dimensions are critical to your project, please check with us before ordering.
| A | B | C |
| 3/8" | 1 1/2" | 24 |
| 7/16" | 1 1/2" | 20 |
| 1/2" | 1 1/2" | 20 |
| 9/16" | 1 1/2" | 18 |
| 5/8" | 1 1/2" | 18 |
| 3/4" | 1 1/2" | 16 |
