Osg 3380000 Straight Flute Tap 00-96 Unc 2 Flute Hss

Product Description

The OSG 3380000 is a straight flute plug tap designed for cutting 00-96 UNC internal threads in a range of ferrous and non-ferrous materials. Built from high-speed steel with a bright uncoated finish, this tap delivers consistent thread form without a coating that could alter tolerances. It features 2 flutes, a plug chamfer for general-purpose through-hole and blind-hole threading, and an H2 thread limit for controlled fit. Overall length is 1-9/16 inches with a thread length of 1/4 inch, making it suited for compact, fine-pitch threading applications where precision is critical.

This tap is appropriate for production and maintenance threading in light machining environments. The 00-96 UNC designation is among the finest standard inch-series thread pitches, commonly used in instrument-grade assemblies, miniature hardware, and precision mechanical components. Material applications include aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. It is used by machinists, tool-and-die technicians, and precision fabricators working with CNC equipment, drill presses, or hand-tapping fixtures.

Key Features

• 00-96 UNC thread form with H2 thread limit for close dimensional control
• Plug chamfer allows use in both through-holes and shallow blind holes
• High-speed steel construction provides durability across a range of workpiece materials
• Bright uncoated finish maintains tight tolerances on fine-pitch threads
• 2-flute straight design suited for short-chip materials including cast iron and aluminum
• Compact overall length of 1-9/16 inches fits standard miniature tap holders and chucks

Compatibility

Designed for use in standard tap holders and collet chucks accepting a 0.141-inch shank diameter. Suitable for threading aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel workpieces per OSG Series S110 specifications.

Installation Notes

Threading should be performed by a qualified machinist using the correct tap wrench, machine holder, or CNC tapping head rated for miniature taps. Ensure the workpiece is securely fixtured before operation and apply appropriate cutting fluid for the workpiece material. When hand-tapping, advance slowly and back off periodically to break chips. At 00-96 pitch, even slight misalignment can shear the tap, so a tap guide or self-centering holder is strongly recommended.