Product Description
UNC left handed high speed steel straight flute taps for creating new internal reverse Unified National Coarse threads.
These left hand UNC HSS straight flute taps are suitable for cutting new internal threads in the opposite direction to standard right hand UNC threads. They are useful for engineering, machinery, repair, maintenance, automotive and restoration applications where a reverse imperial coarse thread is required.
- Thread form: UNC / Unified National Coarse
- 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"-20 UNC through to 1"-8 UNC
- 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"-20 UNC | 20 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 5/16"-18 UNC | 18 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 3/8"-16 UNC | 16 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 7/16"-14 UNC | 14 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 1/2"-13 UNC | 13 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 9/16"-12 UNC | 12 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 5/8"-11 UNC | 11 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 3/4"-10 UNC | 10 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 7/8"-9 UNC | 9 | UNC | Left Hand | High Speed Steel | Straight Flute |
| 1"-8 UNC | 8 | UNC | 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.
