Hertel K007037AS Hand Sti Tap 10-32 Unf H2 Bottoming

Product Description

The HERTEL K007037AS is a hand STI tap designed for cutting screw thread inserts in 10-32 UNF thread applications. It features a bottoming chamfer for threading close to the bottom of blind holes, making it the right choice when full thread depth is required near the base of a bore. Built from high-speed steel with a bright uncoated finish, this tap offers solid wear resistance for standard tapping operations in ferrous and non-ferrous materials. With 3 flutes and an H2 thread limit, it produces consistent, accurate threads suitable for insert installation in precision assemblies. Overall length is 2.5 inches with a 1 inch thread length.

This tap is used in machining, maintenance, and repair operations where stripped or damaged threads are being restored using helical screw thread inserts. It is well suited for light to medium production tapping by hand in shop and field environments. Typical applications include thread repair on fastener bosses in aluminum housings, cast iron components, and steel fabrications. It is commonly used by machinists, tool and die technicians, and maintenance mechanics working on threaded insert installations in industrial and mechanical assemblies.

Key Features

• 10-32 UNF thread size for fine-pitch threaded insert applications
• Bottoming chamfer allows threading to the base of blind holes
• H2 thread limit provides controlled fit for accurate insert seating
• 3-flute geometry promotes chip clearance during hand tapping
• High-speed steel construction delivers durability across common workpiece materials
• Bright uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed as an OEM-style STI hand tap for use with 10-32 UNF screw thread insert systems in standard tapping operations.

Installation Notes

This tap is intended for hand tapping operations and should be used with a properly sized tap wrench. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Ensure the tap is started square to the workpiece to avoid cross-threading or tap breakage. Always clear chips periodically by reversing the tap during the cutting process.