Hertel K008185AS Straight Flute Tap 8-32 Unc Hss

Product Description

The HERTEL K008185AS is a straight flute plug tap designed for cutting 8-32 UNC internal threads in through-hole and blind-hole applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable thread cutting in a wide range of ferrous and non-ferrous materials. The plug chamfer style distributes the cutting load over several leading threads, making it suitable for both through holes and moderately deep blind holes. At 2.125 inches overall length and a 4-flute straight-flute geometry, this tap is well suited for machine tapping and hand tapping operations where chip management is straightforward.

This tap is used in metalworking, maintenance, and production threading applications across manufacturing, repair, and fabrication environments. The 8-32 UNC designation is one of the most common unified coarse thread standards found in light-duty fastener assemblies, panel hardware, and instrument enclosures. Machinists, tool and die makers, and maintenance technicians typically deploy this tap on drill presses, tapping machines, or with standard tap handles. The H2 thread limit ensures a 3B class of fit, providing the standard tolerance range required for most general-purpose threaded assemblies.

Key Features

• Straight flute geometry suited for through-hole and short blind-hole threading
• Plug chamfer distributes cutting load over the entry threads for controlled thread forming
• High-speed steel construction provides durability across a broad range of workpiece materials
• Bright, uncoated finish allows direct inspection of tool condition during service
• H2 thread limit held to 3B class of fit for standard general-purpose thread tolerance
• Right-hand thread direction, compatible with standard tapping drives and tap wrenches

Compatibility

Designed as a standard 8-32 UNC plug tap suitable for general-purpose threading applications requiring a 3B class of fit with an H2 thread limit.

Installation Notes

This tap is installed by machinists and maintenance technicians using a standard tap wrench, tapping head, or CNC tapping cycle. Always use the correct tap drill size for 8-32 UNC to achieve the specified thread engagement before tapping. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tool life. Reverse the tap periodically during hand tapping to break chips and prevent tap breakage.