HSS 4 Flute 12mm x 1.5mm Taper and Plug Metric Tap M12 x 1.5mm Pitch
Features: Straight threaded flute, Plug type, Taper cutting edges and 12mm diameter flute, 1.5mm flute teeth pitch.Suit for machine use to cuts a thread on the inside surface of a hole, creating a female surface which functions like a nut.A taper tap offer a very gradual cutting action and is most often used when the material to be tapped is difficult to work (e.g., alloy steel).