The Hertel Extension Tap is a precision machining tool designed for creating metric threads with accuracy and efficiency. This M12 x 1.75 tap features 3 flutes and a D6 design, crafted from durable High Speed Steel for extended tool life and consistent performance. The spiral point design (also known as a gun tap) pushes chips forward, making it ideal for through holes. With a plug chamfer and 6-inch overall length, this tap provides excellent reach for deeper threading applications. Manufactured to a 6H class of fit, it delivers industry-standard thread precision for metric coarse applications. The extended length design allows access to recessed areas that standard taps cannot reach. This professional-grade threading tool is perfect for maintenance professionals, machinists, and manufacturing operations requiring reliable metric thread creation.