Accupro 18972-00T Thread Forming Tap M12x1.75 Plug Tin

Product Description

The ACCUPRO 18972-00T is a thread forming tap designed for cutting M12x1.75 metric coarse internal threads in through-hole applications. Unlike cutting taps, thread forming taps displace material rather than remove it, producing stronger threads with no chips to clear. This tap is manufactured from powdered metal high-speed steel and coated with titanium nitride (TiN) for improved surface hardness and tool life. With a plug chamfer of 4 chamfered threads, it is suited for through-hole threading where the tap can pass completely through the workpiece. Machinists and tool-and-die professionals use this tap in CNC machining centers, drill presses, and tapping machines.

This tap is intended for through-hole threading operations in ductile metals including low-carbon steels, aluminum, and non-ferrous alloys where chip-free thread forming is preferred. The 6H class of fit and D11 thread limit ensure threads produced meet standard metric tolerance requirements. The plug chamfer style makes it appropriate for production and maintenance environments where through-hole access is available. It is a single-piece tool sold individually and is compatible with standard tap holders sized for a 0.3670-inch shank diameter.

Key Features

• Thread forming (chipless) design produces stronger threads by cold-working material rather than cutting
• Powdered metal high-speed steel construction for improved toughness and wear resistance over conventional HSS
• Titanium nitride (TiN) coating extends tool life and reduces friction during forming
• Plug chamfer with 4 chamfered threads for through-hole threading applications
• 6H class of fit with D11 thread limit for standard metric tolerance compliance
• Single oil groove design aids lubrication during the forming process

Compatibility

Designed for use in standard tap holders and tapping attachments that accept a 0.3670-inch shank diameter. Suitable for through-hole threading of M12x1.75 metric coarse threads in ductile workpiece materials.

Installation Notes

Installation and use of this tap should be performed by qualified machinists familiar with tapping operations and machine tool safety. Ensure the spindle and workpiece are fully secured and all machine guards are in place before operation. Apply appropriate tapping fluid or cutting oil to the tap and workpiece to reduce heat and extend tool life. Thread forming taps require higher torque than cutting taps of the same size, so verify that the tapping machine or holder torque rating is adequate before use.