Product Description
UNF left handed high speed steel straight flute taps for creating new internal reverse Unified National Fine threads.
These left hand UNF HSS straight flute taps are suitable for cutting new internal threads in the opposite direction to standard right hand UNF threads. They are useful for engineering, machinery, repair, maintenance, automotive and restoration applications where a reverse imperial fine thread is required.
- Thread form: UNF / Unified National Fine
- Thread direction: Left hand / reverse thread
- Material: High speed steel / HSS
- Flute type: Straight flute
- Use: Creating new internal threads
- Thread sizes available: 1/4"-28 UNF through to 1"-12 UNF
- Pass options: 1st taper, 2nd intermediate, 3rd bottoming or set of all 3
- Made in the UK
| Thread Size | TPI | Thread Form | Thread Direction | Material | Flute Type |
|---|---|---|---|---|---|
| 1/4"-28 UNF | 28 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 5/16"-24 UNF | 24 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 3/8"-24 UNF | 24 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 7/16"-20 UNF | 20 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 1/2"-20 UNF | 20 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 9/16"-18 UNF | 18 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 5/8"-18 UNF | 18 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 3/4"-16 UNF | 16 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 7/8"-14 UNF | 14 | UNF | Left Hand | High Speed Steel | Straight Flute |
| 1"-12 UNF | 12 | UNF | Left Hand | High Speed Steel | Straight Flute |
Complete sets are supplied in a plastic case; singles are packed in plastic bags.
Please note: Specifications are intended as a guide only. If dimensions are critical to your project, please check with us before ordering.
