The Hertel Straight Flute Tap is a precision threading tool designed for creating M30x3.5 metric coarse threads. Featuring 4 flutes with a plug chamfer design, this tap delivers excellent chip evacuation and cutting performance. Manufactured from high-quality high-speed steel with a bright/uncoated finish, it offers durability and reliability for industrial applications. The tap conforms to 6H class of fit standards, ensuring accurate thread dimensions and proper mating with corresponding fasteners. With an overall length of 5-7/16 inches, this hand tap provides sufficient reach for various threading operations. The straight flute design makes it suitable for through-hole applications in a range of materials. This Hertel tap is an essential tool for machinists and manufacturing professionals working with metric threading requirements.