The DWTET Series extension tap is specifically designed for tapping the hubs of pulleys, making it ideal for applications involving oil caps or set screws. Its long shank allows access to holes that standard-length taps cannot reach, enhancing versatility. Crafted from high-speed steel, these tools are well-suited for a variety of general-purpose tasks, providing an excellent balance of hardness and toughness for superior wear resistance. The uncoated tools consist solely of the base substrate, making them appropriate for numerous applications. They feature a round shape with a square end shank. Additionally, the right-hand cut design ensures effective cutting action when the tool is rotated in a clockwise direction.