Hertel K008032AS Straight Flute Tap 2-56 Unc Bottoming Hss

Product Description

The HERTEL K008032AS is a straight flute bottoming tap designed to cut right-hand internal threads in close-tolerance applications. Built from high-speed steel with a bright, uncoated finish, it produces 2-56 UNC threads with a 2B class of fit and an H1 thread limit. With 2 flutes and a bottoming chamfer, this tap is suited for threading holes to their full depth, including blind holes where thread engagement must reach near the bottom. Overall length is 1.75 inches. Machinists and maintenance professionals use it when thread quality and dimensional accuracy are required in small-diameter fastener applications.

This tap is used in precision machining, production toolrooms, and maintenance environments where 2-56 UNC threaded holes are required in metal components. The bottoming chamfer allows threading to the bottom of blind holes, making it appropriate for small assemblies, instrument housings, and electronic enclosures where through-hole threading is not an option. It is suited for use in manual tapping operations as well as low-speed machine tapping setups.

Key Features

• Bottoming chamfer for threading blind holes to full depth
• 2-56 UNC thread form with 2B class of fit for standard tolerance applications
• H1 thread limit for controlled thread sizing
• 2 straight flutes for chip clearance in short-chipping materials
• High-speed steel construction for durability across common workpiece materials
• Bright uncoated finish suitable for general-purpose tapping with cutting fluid

Compatibility

Designed as a standard replacement or production tap for applications requiring 2-56 UNC internal threads with a bottoming chamfer and 2B class of fit.

Installation Notes

This tap is installed by machinists or maintenance technicians using a tap wrench, tapping head, or low-speed machine spindle. Always use appropriate cutting fluid for the workpiece material to reduce tool wear and improve thread finish. Ensure the tap is properly aligned with the drilled hole before applying torque to avoid tap breakage. Back the tap off periodically to clear chips when tapping deeper blind holes.