Dolphin HSS Straight Flute Metric Coarse Short Hand Tap, Dia 1-12 mm (Set of 3)

The Dolphin HSS Straight Flute Metric Coarse Short Hand Tap set, ranging from 1 mm to 12 mm in diameter, consists of three high-speed steel (HSS) hand taps designed for tapping coarse metric threads in various materials. Here are the key features and details of this tap set:

1. High-Speed Steel (HSS) Construction: The hand taps are made from high-speed steel (HSS), which provides excellent hardness, toughness, and wear resistance. HSS taps are suitable for tapping threads in a wide range of materials, including steel, aluminum, brass, and plastics.

2. Straight Flute Design: These hand taps feature a straight flute design, characterized by straight grooves along the tap body. The straight flute design is effective for general-purpose tapping applications and provides efficient chip evacuation.

3. Metric Coarse Thread Pitch: This tap set is designed for tapping coarse metric threads, denoted as Metric Coarse (MC). The tap sizes in the set cover diameters ranging from 1 mm to 12 mm, allowing for the creation of standard coarse threads commonly used in various industries.

4. Short Length Taps: The hand taps in this set are of short length, which makes them suitable for use in confined spaces or shallow holes where standard-length taps may be too long.

5. Set of Three Taps: The set includes three hand taps per diameter—typically a taper (starter) tap, a plug (intermediate) tap, and a bottoming (finishing) tap. The taper tap has a more pronounced chamfer to assist in starting the thread, the plug tap is used for continuing the threading process, and the bottoming tap is used for finishing threads close to the bottom of blind holes.

6. Versatile Applications: Dolphin HSS Straight Flute Metric Coarse Short Hand Taps are suitable for various industrial applications, including automotive, machinery, fabrication, and repair. They can be used for tapping holes in both ferrous and non-ferrous metals, as well as plastics.

7. Hand Tapping Operations: These taps are designed for manual hand tapping operations, where the taps are turned by hand with a tap wrench. It is important to use cutting fluid or lubricant during tapping to improve tool life and thread quality.

In summary, the Dolphin HSS Straight Flute Metric Coarse Short Hand Tap set offers a range of durable HSS taps for creating standard coarse metric threads in various materials. The straight flute design and short length make these taps versatile and suitable for use in confined spaces or shallow holes. This tap set is essential for workshops and manufacturing facilities requiring precise and reliable thread tapping capabilities in coarse metric thread sizes.