British System Spiral Point Tap
The SP116 is a professional-grade straight flute tap specifically designed for tapping ANSI B1.13M standard Unified Thread. Its main advantages lie in its efficient guiding performance, excellent thread accuracy, good chip removal, and stable machining process. Especially under conditions involving hard materials, precision workpieces, or complex processes, it significantly improves machining quality and production efficiency. It is particularly suitable for applications in the automotive, aerospace, machinery, and hydraulic industries where high metric or imperial thread accuracy is required. It performs exceptionally well in high-efficiency machining and with complex materials. With repeated use, the tip tap reduces the frequency of tool adjustments and recalibrations, improving machining efficiency and consistency. It reduces vibration during the initial contact of the tap in the hole, ensuring a more precise start to the thread and reducing machining errors.
| Part number | SP116 E11UNC |
|---|---|
| Material | HSS-E |
| Product Name | American Standard Cutting Taps/Blind Hole Taps |
| OEM / ODM | Made to your samples or drawings |
| Specifications | May 8-11, UNC |
| Lead time | 2 Weeks |
| Packaging (mm) | 15 × 15 × 100L |
| Thread Diameter D1 | 5/8-11UNC |
| Cut-out Length L3 | 20.0mm |
| Shank diameter D | Ø9.0mm |
| Overall Length L | 89.0mm |
| Thread Tolerance Grade ISO | JIS 2B |
| Coating | TiN |
| MOQ | 2 pcs |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Ground using a high-precision thread grinder, the thread profile accuracy is controlled within ±0.01mm, and the thread surface finish can reach below Ra0.4μm, ensuring the accuracy of American standard thread connections.
Based on high-speed steel (HSS) and high-performance high-speed steel (HSSE), it combines high toughness and red hardness, suitable for tapping general-purpose materials such as steel and aluminum alloys.
A leading tap (also called a tip tap or pilot tap) is a specially designed tap used in thread cutting. It is typically used in the initial stage of tapping to aid in grinding and guide the entire thread cutting process. Its design and function offer many unique advantages, making it particularly suitable for high-precision, high-efficiency machining requirements.
The leading section design ensures uniform cutting force distribution throughout the thread cutting process, reducing potential vibration and tool deformation during machining.
The leading tap design is used for initial cutting, ensuring precise thread initiation and reducing errors, making it particularly suitable for demanding thread machining tasks.
By optimizing the cutting design at the front end, high surface quality can be achieved from the initial stage, laying the foundation for the entire thread machining process.
A thickened shank with a constant diameter increases rigidity by 20%, eliminating runout during high-feed tapping and ensuring consistency in thread depth and accuracy.
The flute shape is parallel to the tap axis, allowing chips to flow smoothly along the flute direction, making it suitable for through-hole tapping scenarios and providing excellent machining stability.
Send the thread standard, size and tolerance class. We supply standard taps and thread mills, plus special threads made to your samples or drawings.