Dolphin HSS Metric Coarse Short Hand Tap, Dia: 18-68 mm

The Dolphin HSS Metric Coarse Short Hand Tap, with diameters ranging from 18mm to 68mm, is a specialized cutting tool designed for creating internal metric coarse threads in larger diameter holes. Here are the key details about this tap:

1. Material and Construction: The tap is made from High-Speed Steel (HSS), which offers excellent hardness, toughness, and heat resistance necessary for threading operations in metal. HSS allows the tap to maintain sharp cutting edges and withstand the demands of threading larger diameter holes.

2. Thread Standard: The tap conforms to the metric coarse thread standard (M-thread), which is commonly used for general-purpose threading in metric-based applications where quick assembly and disassembly are required.

3. Short Hand Tap Design: This tap is designed for manual threading operations by hand. Short hand taps are typically used for through holes (holes that go completely through the material).

4. Metric Coarse Thread Sizes: The tap covers a range of metric coarse thread sizes with diameters from 18mm to 68mm. Metric coarse threads have a larger pitch compared to metric fine threads, making them suitable for faster assembly and disassembly applications.

5. Application: The Dolphin HSS Metric Coarse Short Hand Tap is suitable for various industrial applications where large diameter metric coarse threads are required, such as in heavy machinery, construction, shipbuilding, and other metalworking industries.

6. Usage Recommendations: It's recommended to use cutting oil or lubricant during threading operations to reduce friction, dissipate heat, and prolong the tool life. Proper lubrication helps in chip evacuation and improves overall threading performance, especially when working with larger diameter holes.

7. Versatility: This hand tap is versatile and can be used with different types of materials including steel, stainless steel, aluminum, brass, and various alloys.

In summary, the Dolphin HSS Metric Coarse Short Hand Tap with diameters ranging from 18mm to 68mm is a reliable and durable cutting tool for creating metric coarse threads in larger diameter holes. Its HSS construction, combined with the metric coarse thread standard and short hand tap design, ensures efficient and precise threading operations suitable for heavy-duty industrial applications.