Greenfield 5351 27040 M10X1.50 HSS 3FL gun tap with a bright finish is a high-speed steel tool designed for internal threading of M10X1.50 holes. The 3-flute (3FL) geometry provides consistent cutting action and reliable thread formation in metal. As a gun tap, it reflects Greenfield's design for metric-thread tapping in common workshop applications where precise internal threads are needed.
