Accupro T1640362 Spiral Point Tap 12-24 3 Flute Plug

Product Description

The ACCUPRO T1640362 is a spiral point plug tap designed for cutting 12-24 UNC internal threads in through-hole applications. Built from HSS-E vanadium high speed steel and finished with an oxide coating, this tap delivers improved wear resistance and chip evacuation compared to standard HSS taps. The spiral point geometry pushes chips forward through the hole rather than packing them back into the flutes, making it well suited for production tapping in through-hole work. With 3 flutes, an H2 thread limit, and a right-hand thread direction, it fits standard tapping setups on manual lathes, drill presses, and CNC machining centers.

This tap is used in general metalworking, maintenance, and repair applications where 12-24 UNC through-holes are required. It handles a range of common ferrous and non-ferrous materials typical in machine shops and light manufacturing environments. The plug chamfer features a moderate lead-in that balances starting ease with thread length engagement, making it appropriate for both production runs and single-piece work. Installation is performed by machinists and maintenance technicians using standard tap handles, tapping attachments, or CNC rigid tapping cycles.

Key Features

• Spiral point geometry pushes chips forward, reducing clogging in through-hole tapping
• HSS-E vanadium construction provides increased toughness and wear life over standard HSS
• Oxide coating reduces friction and provides light corrosion resistance during storage and use
• Plug chamfer with 3-5 thread lead-in for general-purpose through-hole starting
• H2 thread limit for close-tolerance fits in standard 12-24 UNC applications
• Right-hand cut, compatible with standard spindle rotation on most tapping equipment

Compatibility

Designed as an OEM-style replacement spiral point tap for 12-24 UNC through-hole threading applications on standard manual and CNC tapping equipment.

Installation Notes

This tap is installed by machinists or maintenance technicians using a tap handle, tapping attachment, or rigid tapping cycle on a CNC machine. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole before beginning the thread-cutting operation. Always apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Remove chips frequently when tapping manually to prevent tap breakage.