Accupro T2640362B Spiral Point Tap 12-24 3 Flutes Plug

Product Description

The ACCUPRO T2640362B is a spiral point tap designed for threading 12-24 unified coarse holes in steel and similar ferrous materials. Built from 3% vanadium high speed steel (HSS-V) with a bright finish, it delivers the edge retention and toughness required for production tapping in machine shop and maintenance environments. The plug chamfer geometry allows the tap to begin threading gradually, distributing cutting load across the first few threads. With 3 flutes and a spiral point design, chips are pushed ahead of the tap into the hole, making it well suited for through-hole applications. Overall length is 2.38 inches with a 17 mm thread length.

This tap is intended for cutting 12-24 internal threads in steels. The 2B class of fit produces a standard tolerance thread suitable for most general fastener applications. Right-hand cutting direction makes it compatible with conventional tapping heads, CNC machining centers, and hand tap wrenches. It is commonly used by machinists and maintenance technicians in job shops, manufacturing facilities, and MRO operations where through-hole tapping in mild to medium-hardness steels is routine.

Key Features

• Spiral point geometry pushes chips forward, suited for through-hole tapping
• 3% vanadium high speed steel construction for improved wear resistance over standard HSS
• Plug chamfer with gradual thread lead-in for controlled cutting load
• 2B class of fit for standard unified thread tolerance
• Bright finish — no coating — for easy visual wear inspection
• Right-hand cutting direction compatible with standard tapping equipment

Compatibility

Designed as an OEM-style threading tool for 12-24 through-hole applications in steel workpieces. No specific machine or system compatibility was provided by the manufacturer for this SKU.

Installation Notes

This tap should be installed by a qualified machinist or maintenance technician familiar with tapping procedures and cutting fluid selection for steel. Ensure the workpiece is securely fixtured and the drill hole diameter matches the recommended tap drill size for 12-24 threads before beginning. Apply appropriate cutting fluid or tapping compound to the tool and workpiece to reduce heat and extend tool life. Do not reverse the tap under power without confirming the tapping head or machine is set for reverse extraction.