Hertel K008932AS Tap Set 9/16-18 Unf 4 Flute Hss

Product Description

The HERTEL K008932AS is a 3-piece tap set designed for cutting 9/16-18 UNF internal threads in metal workpieces. Built from high speed steel with a bright finish, this set delivers consistent thread form across a range of fit classes. The overall length of 3-19/32 inches and 4-flute geometry support chip evacuation and cutting stability in through-hole and blind-hole applications. The H3 thread limit and 2B/3B class of fit make this set appropriate for standard unified fine thread work in production and maintenance environments. Machinists, toolmakers, and maintenance technicians are the primary users.

This tap set is suited for threading operations in ferrous and non-ferrous metals where 9/16-18 UNF thread form is required. Typical applications include machine repair, fixture fabrication, and component manufacturing in industrial, automotive, and general maintenance settings. The 3-piece set format provides taper, plug, and bottoming tap configurations to handle a variety of hole conditions from starting a thread to finishing a blind bore.

Key Features

• 9/16-18 UNF thread form for unified fine thread applications
• 4-flute design promotes chip clearance and cutting stability
• High speed steel construction for durability across common metals
• Bright finish — no coating buildup to affect thread tolerance
• H3 thread limit with 2B and 3B class of fit coverage
• 3-piece set covers taper, plug, and bottoming tap styles

Compatibility

Designed for use in any application requiring 9/16-18 UNF internal threads with a 2B or 3B class of fit. Suitable for hand tapping or machine tapping on standard drill presses, CNC machines, or tapping arms.

Installation Notes

Tapping operations should be performed by qualified machinists or maintenance technicians following standard shop safety procedures. Ensure proper tap drill size is used before threading to maintain correct thread engagement. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Secure the workpiece firmly before beginning the tapping operation to prevent movement and tap breakage.