Accupro T2640505 Spiral Point Tap 3/8-24 Plug Hss

Product Description

The ACCUPRO T2640505 is a spiral point plug tap designed for cutting 3/8-24 UNF threads in steel and similar ferrous materials. Made from 3% vanadium high speed steel with a bright finish, this tap drives chips forward ahead of the cut, keeping the flute area clear during through-hole tapping operations. It features 3 flutes, a plug chamfer for gradual thread engagement, and a right-hand thread direction. With an overall length of 2.94 inches and a thread length of 24 mm, it fits standard tapping chucks and CNC rigid-tap setters used in machining and maintenance trades.

This tap is suited for production and maintenance tapping of 3/8-24 UNF threads in steels. The spiral point geometry makes it the preferred choice for through-hole applications where chip evacuation is a priority. It is commonly used by machinists, tool and die makers, and maintenance technicians on drill presses, CNC machining centers, and manual tapping fixtures. The bright finish provides adequate lubricity for general-purpose steel tapping without an additional coating.

Key Features

• Thread size 3/8-24 UNF, right-hand thread direction
• 3% vanadium high speed steel construction for improved wear resistance over standard M2 HSS
• Spiral point geometry drives chips forward for reliable through-hole tapping
• 3 flutes with plug chamfer for gradual thread engagement and reduced entry force
• H5 thread limit for controlled tolerance fit in precision applications
• Bright finish suitable for general-purpose steel tapping with cutting fluid

Compatibility

Designed as a general-purpose spiral point plug tap for through-hole tapping of 3/8-24 UNF threads in steels.

Installation Notes

Install in a tapping chuck or rigid-tap holder sized to the 9.68 mm shank diameter. Always apply appropriate cutting fluid when tapping steel to extend tap life and improve thread finish. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole before engagement. Do not reverse the tap under power without confirming the machine supports rigid tapping cycle reversal.