Hertel K008603AS Spiral Point Tap 3/4-10 Unc Hss

Product Description

The HERTEL K008603AS is a spiral point tap designed for cutting right-hand internal threads in through-hole applications. Built from high speed steel with a bright finish, this plug chamfer tap handles 3/4-10 UNC thread specifications with a 3-flute design that pushes chips ahead of the cut rather than packing them into the flute. The H11 thread limit designation indicates a slightly oversized tap, running 0.0050 inches oversize, which accommodates thread tolerances in ferrous and non-ferrous materials. Coolant-through capability is not included in this design.

This tap is suited for threading through holes in production and maintenance environments. The plug chamfer style provides 3 to 5 threads of lead-in, making it appropriate for through-hole work where chip evacuation is a priority. The spiral point geometry is widely used in CNC tapping and rigid tapping setups on machining centers, drill presses, and tapping machines. The 3/4-10 UNC size sees common use in structural fastening, heavy equipment, and industrial fabrication applications.

Key Features

• 3/4-10 UNC thread form with right-hand cutting direction
• 3-flute spiral point design pushes chips forward, reducing chip packing in through-hole applications
• Plug chamfer with 3 to 5 thread lead-in for standard through-hole entry
• H11 thread limit with 0.0050 inch oversize allowance for consistent tolerance control
• High speed steel construction for durability across a range of workpiece materials
• Bright finish with no additional coating — suitable for use with cutting fluids

Compatibility

Designed as a standard replacement or production spiral point tap for 3/4-10 UNC through-hole threading operations in machining and maintenance applications.

Installation Notes

This tap should be installed in a properly sized tap holder or collet rated for the shank diameter before use. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole to prevent tap breakage. Use an appropriate cutting fluid for the workpiece material. Operators should follow shop safety protocols and wear appropriate eye protection when tapping operations are performed.