● For machine use
● For through holes or blind holes
● Used for casting iron, bronze, low/medium carbon tool steel, mold steel, aluminum/magnesium alloy steel, etc.
● Spiral flute Material: HSS, HSS-E.
● Chips flow out against tapping direction (ejected from holes)
● Lower tapping torque and applicable for tapping to the bottom of holes
● Good cutting action
casting iron, bronze, low/medium carbon tool steel, mold steel, aluminum/magnesium alloy steel, etc.