Accupro T2640322B Spiral Point Tap 10-24 3 Flutes Plug 2B

Product Description

The ACCUPRO T2640322B is a spiral point tap designed for cutting 10-24 UNC internal threads in through-hole applications. It features a plug chamfer with 3 flutes and a right-hand thread direction, pushing chips forward through the hole during tapping. Manufactured from 3% Vanadium High Speed Steel with a bright finish, it delivers solid wear resistance for general-purpose tapping in steel and similar ferrous materials. The tap conforms to a 2B class of fit, which is the standard tolerance class for most commercial threaded fastener applications. Overall length is 2.375 inches with a thread length of approximately 0.63 inches.

This tap is suited for production and maintenance tapping operations in machine shops, fabrication shops, and industrial maintenance environments. It is appropriate for use in drill presses, tapping machines, CNC machining centers, and hand-tapping fixtures. The spiral point design makes it particularly effective in through-holes where chip evacuation is critical. Primary material application is steels, making it a reliable choice for mild steel, low-alloy steel, and similar workpiece materials commonly encountered in mechanical assembly and fabrication work.

Key Features

• 10-24 UNC thread form for standard commercial fastener applications
• Spiral point geometry pushes chips forward, reducing chip packing in through-holes
• 3% Vanadium High Speed Steel construction for improved toughness and wear resistance over standard M2 HSS
• Plug chamfer provides a balance of entry ease and thread engagement length
• 2B class of fit meets standard tolerance requirements for most threaded assemblies
• Bright finish — no coating, suitable for use with cutting fluids or oils

Compatibility

Designed for through-hole tapping of 10-24 UNC threads in steel and similar ferrous materials. Compatible with standard 10-24 tap holders, collets, and tapping heads that accept a 4.93 mm shank diameter.

Installation Notes

Tapping should be performed by a machinist or qualified trade professional using a rigid or floating tap holder appropriate for the machine type. Always use a suitable cutting fluid or tapping oil when tapping steel to extend tool life and improve thread quality. Secure the workpiece firmly before operation and ensure the tap is properly aligned with the drilled hole to avoid tap breakage. Inspect the tap for wear or chipping before each use, especially in production settings.