Hertel K008033AS Straight Flute Tap 2-56 Unc Hss

Product Description

The HERTEL K008033AS is a straight flute plug tap designed to cut 2-56 UNC internal threads in through-holes and blind holes where chip clearance is manageable. Manufactured from high-speed steel with a bright, uncoated finish, it delivers reliable performance in general-purpose threading applications. The plug chamfer - with a standard lead-in - makes it suitable for both starting a thread and completing it in most production and maintenance environments. At 1.75 inches overall length and a 2-flute geometry, this tap is sized for the smallest standard inch thread series, commonly used in precision assemblies, electronics, and instrumentation work.

This tap is intended for threading 2-56 UNC holes in light metals, plastics, and mild steels encountered in precision manufacturing, electronics fabrication, and instrument repair. The 2B class of fit produces a standard commercial thread tolerance, appropriate for fasteners requiring reliable engagement without close-tolerance fitting. The H2 thread limit provides a slightly oversized thread to account for spring-back in common materials. It is suited for use in drill press, CNC, or hand-tapping operations where straight-flute geometry and chip control are appropriate for the material and hole depth.

Key Features

• 2-56 UNC thread form for small-fastener applications in electronics and precision assemblies
• Plug chamfer provides a standard lead-in suitable for most through-hole and moderate blind-hole work
• High-speed steel construction handles a broad range of base materials including light metals and plastics
• H2 thread limit produces a 2B class of fit for standard commercial thread tolerance
• 2-flute straight design is effective in materials that produce short, manageable chips
• Bright uncoated finish - no coating buildup to affect thread tolerance in fine-pitch work

Compatibility

Designed as a standard replacement or production tap for 2-56 UNC threading operations; compatible with any tap holder or chuck sized for the corresponding shank diameter of a 2-56 straight flute tap.

Installation Notes

Threading should be performed by a machinist or qualified technician familiar with tap sizing and hole preparation requirements. Ensure the pilot hole is drilled to the correct tap drill size for 2-56 UNC prior to tapping. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Reverse the tap periodically when hand-tapping to break chips and prevent binding.