Osg 3370000 Straight Flute Tap 00-90 Unc 2 Flute Hss

Product Description

The OSG 3370000 is a straight flute tap designed for cutting internal 00-90 UNC threads in a range of ferrous and non-ferrous metals. Built from high-speed steel with a bright, uncoated finish, it features a plug chamfer for standard through-hole and blind-hole threading applications. The tap has an overall length of 1-9/16 inches and a thread length of 1/4 inch, making it suited for small, precise thread-cutting work. With 2 straight flutes and a right-hand thread direction, it is sized for use with appropriate tap handles or CNC tapping equipment in machine shop and field maintenance settings.

This tap is intended for use in production and maintenance applications requiring fine 00-90 UNC threading. It is suited for threading aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. The S110 series designation and H2 thread limit make it appropriate for close-tolerance threading where consistent fit is required. Machinists, tool and die technicians, and maintenance professionals working with miniature fastener threads will find this tap applicable for both manual and light machine tapping operations.

Key Features

• 00-90 UNC thread size with right-hand thread direction for standard internal thread cutting
• Plug chamfer allows use in both through-holes and blind holes with adequate clearance
• High-speed steel construction provides durability across a wide range of work materials
• H2 thread limit ensures close-tolerance fit for precision threading applications
• Bright, uncoated finish suitable for use with cutting fluids appropriate to the work material
• Compact 1-9/16 inch overall length designed for confined or miniature workpiece access

Compatibility

Compatible work materials include aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. Designed as an OEM-style cutting tool replacement in the OSG S110 series for 00-90 UNC thread specifications.

Installation Notes

This tap should be used by qualified machinists or maintenance technicians familiar with thread-cutting procedures. Before tapping, ensure the workpiece is securely fixtured and the correct tap drill size for 00-90 UNC threads has been used. Apply an appropriate cutting fluid for the work material to extend tool life and improve thread quality. For CNC or power tapping, verify spindle speed and feed rate are set for the material and tap size before operation.