Product Description
UNC carbon steel taps available individually or as a full 1st, 2nd and 3rd tap set. These UK made hand taps are suitable for Unified National Coarse threads and are mainly used for cleaning, chasing and repairing existing internal threads.
Choose from a wide range of UNC imperial thread sizes including No.2-56, No.4-40, No.6-32, No.8-32, No.10-24, 1/4" x 20, 5/16" x 18, 3/8" x 16, 7/16" x 14, 1/2" x 13, 5/8" x 11, 3/4" x 10, 7/8" x 9, 1" x 8 and 1 1/8" x 7. Options include 1st taper, 2nd intermediate, 3rd bottoming or a complete set of all three taps.
The 1st taper tap is used to start the thread, the 2nd intermediate tap follows on, and the 3rd bottoming tap is used to finish close to the bottom of a blind hole. Carbon steel taps are a practical choice for workshop, automotive, machinery, classic vehicle, restoration, repair and maintenance use when cleaning out damaged or dirty UNC threads.
For cutting new threads, especially in tougher materials or regular production work, high speed steel taps are recommended. UNC thread dimensions are commonly referenced to ASME B1.1.
- UNC carbon steel taps
- Available individually or as a set of all 3 taps
- 1st taper, 2nd intermediate and 3rd bottoming options
- UK made carbon steel
- UNC / Unified National Coarse thread
- For cleaning, chasing and repairing existing threads
- Sizes from No.2-56 to 1 1/8"-7 UNC
- Useful for classic vehicles, engineering, restoration and maintenance work
- ASME B1.1 thread reference
Also known as UNC hand taps, Unified National Coarse taps, carbon steel taps, thread cleaning taps, thread chasing taps, taper taps, second taps, bottoming taps and imperial thread taps.
